A new species of Cerithium （Gastropoda： Cerithiidae） from the South China Sea

Specimens of a new species of Cerithiidae, Cerithium mangrovum n. sp., were collected during two surveys along the coasts of Hainan and Guangdong Province, China. Usually associated with potamidid snails, this species often occurs in large populations between the mid-high tidal zones in a range of habitats, including mangroves, grass beds, silt, mud, and coral reefs. C. mangrovum n. sp. has a slender and tapering shell and the straight-sided whorl bears three aligned beaded spiral cords. The thick outer lip has a wide posterior sinus. It morphologically resembles C. coralium Kiener, 1841. The shell of C. coralium is usually larger and wider and the spiral cords are not as beaded as in C, mangrovum n. sp. Its radula has a rachidian tooth with a shallow, wide, median basal projection while the rachidian tooth of C. mangrovum n. sp. has a moderately long, median basal projection.     

Descriptions of three new species of Mitridae （Mollusca： Gastropoda） from South China Sea

Three new species of Family Mitridae （Mollusca： Gastropoda） from the South China Sea are described in the present paper. They are Ziba aglais sp. nov. B. LI ＆ S. ZHANG, Neocancilla daidaleosa sp.nov. B. LI ＆ X. LI, and Mitra holkosa sp. nov. B. LI. Their systematic positions are also discussed.     

Planaxidae (Mollusca,Gastropoda) from the South China Sea

Planaxidae is a family of tropical and subtropical marine gastropods that are adapted to an intertidal, rocky environment. The present study deals with three species in the family Planaxidae from the South China Sea: P lanaxis sulcatus(von Born, 1778), Angiola longispira(Smith, 1872), and S upplanaxis niger(Quoy and Gaimard, 1833), based on specimens deposited in the Marine Biodiversity Collections of the South China Sea, Chinese Academy of Sciences. The taxonomic status, main morphological characteristics of the shell and radula, distribution, and habitat of these three planaxid species are presented. We also briefly discuss their morphological dif ferences and the biogeographic distribution.     

A NEW SPECIES OF THE GENUS NEROCILA （ISOPODA： CYMOTHOIDAE） FROM THE EAST CHINA SEA

A new species of cymothoid Isopeda, Nerocila donghaiensis, collected from the body of a sciaenid fish, Johnius sp., is described in the present paper. The new species can be distinguished from the other species of genus Nerocila by its endoped of uropods with deep notch, sharply serrated on the lateral margin and strongly serrated on the medial margin; antennule with 1 st article swollen; dactyli of pereopods Ⅰ, Ⅱ, Ⅳ, Ⅴ swollen.     

A new species ofPraebebalia (Crustacea: Brachyura: Leucosiidae) from East China Sea

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A new species of Nassarius (Gastropoda: Nassariidae) from the western Pacific Ocean

This paper describes a new species of Nassarius from the South China Sea,which was recognized when re-sorting the collection of Nassariidae in the Marine Biological Museum,Chinese Academy of Sciences,Qingdao,China.The shells were collected during several investigations,including the National Comprehensive Oceanic Survey in 1958-1959,and the China-Vietnam Co-Investigation on Marine Resource of the Beibu Gulf during 1959-1962.The morphology of the shell and the radula places the new species of Nassarius within the subgenus Zeuxis.It is named Nassarius(Zeuxis) nanhaiensis sp.nov.     

A new species of Eunice (Polychaeta: Eunicidae) from Hainan Island, South China Sea

Ataxonomic survey of benthic marine animals from coastal regions of Hainan Island, South China Sea, revealed specimens of a new species of Eunice (Polychaeta: Eunicida: Eunicidae), Eunice uschakovi n. sp., collected from the intertidal zone. The species belongs to the group of Eunice that has yellow tridentate subacicular hooks and branchiae scattered over an extensive region of the body. It resembles E. miurai and E. havaica in having both bidentate and tridentate falcigers, but can be readily distinguished by branchial features. Comparisons between E. uschakovi and the two related species are presented.     

Three species of Siphonalia Adams, 1863 (Gastropoda,Buccinidae) from China seas,with descriptions of two new species

Journal of Oceanology and Limnology - Three species of Siphonalia A. Adams, 1863 collected from the East and South China Seas are described and illustrated. Species were identified during...     

A new species of Parodontophora (Nematoda: Axonolaimidae) from the intertidal zone of the East China Sea

This study described a new species of free-living nematode discovered in the intertidal mudflat of Ximen Island,East China Sea.The new species,designated Parodontophora longiamphidata sp.nov.,was characterized by a cylindrical body with tapering extremeties;cuticle smooth without somatic setae;four short cephalic setae;cylindrical buccal cavity with six clawlike teeth at the top of stoma;pharynx cylindrical with widened base;amphidial fovea crook-shaped with elongated scalariform branch extending past level of base of pharynx and ventral gland;ventral gland cell long-oval shaped located posterior to pharyngo-intestinal junction;excretory pore at level of middle of buccal cavity;tail conico-cylindrical with enlarged tip;three caudal gland cells,male spicules arched with cephalic proximal end and tapered distal end;gubernaculum with dorso-caudal apophysis;female with two opposed outstretched ovaries;and vulva at slightly post-midpoint of body length.This new species was close to P.wuleidaowanensis Zhang,2005 and P.polita Gerlach,1955 in terms of long amphidial fovea branch.The newly found species was easily distinguishable from the two documented;its amphidial fovea branch(255–290 μm versus 72–106 and 125–150 μm) was obviously longer.Key to the Parodontophora species with a longer amphidial fovea branch was given.     

A new species of Phyllochaetopterus Grube,1863(Polychaeta:Chaetopteridae) from Hainan Island,South China Sea

Phyllochaetopterus species are widely distributed on the coast of China.Here,Phyllochaetopterus hainanensis n.sp.,a new species collected from Hainan Island(China),is reported.It is characterized by having a V-shaped peristomium,two eyespots covered by a pair of large curved peristomial notopodia(cirri located beneath the palps),13-14 chaetigers in the anterior body region,with three enlarged modified chaetae on the fourth notopodium,and more than five chaetigers in the middle body region.The modified chaeta has a slightly inflated head with an obliquely truncate end.The new species resembles Phyllochaetopterus socialis Claparede,1869,but differs in the shape of peristomial notopodia and peristomium.Twelve species of Phyllochaetopterus have been described from the Pacific Ocean,including the new species described here.An identification key to the known Pacific species is provided together with a brief discussion of the taxonomic value of the eyespots for the genus.     

A new species and new recorded species of Lumbrineridae Schmarda, 1861 (Annelida: Polychaeta) from China

Based on material deposited in the Marine Biological Museum of the Chinese Academy of Sciences(Qingdao),a new species,Lumbrineris sinensis sp.nov.,as well as Augeneria albidentata(Ehlers,1908),which is recorded for the first time from coastal water of China,are reported in the present paper.The specimens examined were collected during 1958 to 1960 from the Yellow Sea,East China Sea and South China Sea at depths of 4 to 182 m.     

Some new species of radiolaria from surface sediments of the East China Sea and the South China Sea

Fourteen species of Radiolaria described in this paper were discovered from surface sediments of the East China Sea, the South China Sea and the cores of the Okinawa Trough. Type specimens are deposited in the Second Institute of Oceanography, SOA.     

Two new records of Pyramidellidae (Gastropoda, Heterobranchia) from China seas

This paper reports two species of the family Pyramidellidae (Gastropoda, Heterobranchia), Otopleura nitida (A. Adams, 1854) and Rugadentia manzakiana (Yokoyama, 1922). The former was from the South China Sea and the latter was from the Yellow Sea and East China Sea. The study was based on the collections deposited in the Marine Biological Museum, Chinese Academy of Sciences. This is for the first time that these species have been recorded in China seas. In the current contribution, we describe and illustrate these two species, and compare them with similar species.     

Virescentia guangxiensis(Batrachospermales,Rhodophyta):a new freshwater red algal species from South China

Virescentia guangxiensis,a new species of Virescentia from Guangxi,South China,is described and illustrated based on morphological observations and phylogenetic analysis.This species was distinguished morphologically from other species by the presence of special expansion cells with a variable shape,obovoid,spherical,pear-shaped,located in the penultimate cells of primary or secondary fascicles,rarely terminal on primary fascicles,as well as by small whorls(250-350-μm wide) and short primary fascicles(5-7 cell stories).Phylogenetic analysis of molecular data from the rbcL and COI-5 P loci supported the separation of the proposed new species from other species in the genus Virescentia.This is the first species of the order Batrachospermales reported in Guangxi and the second species of the genus Virescentia reported in China.This study expands the known species diversity and geographical distribution of fre shwater Rhodophyta in China.     

A new species of the genus Haloschizopera Lang, 1944(Copepoda,Harpacticoida, Miraciidae,Diosaccinae) from the East China Sea

A new species belonging to the genus Haloschizopera Lang,1944(Copepoda,Harpacticoida,Miraciidae,Diosaccinae)was identified based on the samples collected from the East China Sea,near the offshore of Zhejiang Province,East China.The new species is closely related to H.pygmaea Norman Sccot T.,1905 and shares a combination of the following features:A1 eight-segmented;A2 exp-2 with one distal seta,exp-3 with three setae;P1 endopodal segments subequal,enp-1 not exceeding exp-2;exp-3 of P3 with one inner seta,of P4 with two inner setae.The new species is characterized by the presence of one inner seta on P2 exp-3 of both sexes.It can also be distinguished from its congeners by the characters of female:P5 exopod subcircular,endopodal lobe extending beyond half-length of exopod;genital doublesomite ornamented with three dorsolateral rows of spinules on anterior part.     

A new species of the genus Arcoscalpellum (Cirripedia,Thoracica, Scalpellidae) from deep waters in the South China Sea

A new species of deep-water barnacle that belongs to the family Scalpellidae is described from the South China Sea. A rcoscalpellum liui sp. nov. is morphologically similar to A rcoscalpellum gryllum Zevina,but differs from the latter by the absence of longitudinal striae on the capitular plates and the presence of caudal appendages with few terminal setae.     

Settlement and metamorphosis of Rapana venosa (Gastropoda: Muricidae) with implications for artificial culture

Journal of Oceanology and Limnology - The rapa whelk Rapana venosa transforms from a phytophagous larva to a carnivorous juvenile after settlement and metamorphosis. The high mortality rate and low...     

A new species of the genus Amphicteis (Polychaeta: Ampharetidae) from China

A new species of the ampharetid genus Amphicteis,A.chinensis sp.nov.,is described based on material from the East and South China Seas.The new species is distinguished from the other known species of this genus by the presence of a lobebehind the paleae.Akey to distinguish all Amphicteis species and the closely related genus Paramphicteis from the Chinese seas is provided.     

ON THE FAMILY LYONSIIDAE (MOLLUSCA:BIVALVIA), WITH DESCRIPTION OF A NEW GENUS AND SPECIES FROM THE CHINA SEAS

The present paper deals with 4 species of Family Lyonsiidae , collected from the China Seas : one new genus and new species, Sinolyonsia sinica gen . et sp. nov, one species, Lyonsia kawamurai recorded for the first time from the China Seas , and 2 species L . ventricosa Gould and Agriodesma navicula (Adams et Reeve) reported previously from the Yellow Sea by the author .