Report on the Hippolytidae Bate (sensu lato) from China seas Author Xu, Peng Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China & University of Chinese Academy of Sciences, Beijing 100049, China Corresponding author, E-mail: lixzh @ qdio. ac. cn Author Li, Xin-Zheng Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China text Zoological Systematics 2015 40 2 107 165 http://zoobank.org/ef4c535d-b77c-45e1-86ba-a3f7aa06ed18 journal article 10.11865/zs.20150201 2095-6827 7176422 EF4C535D-B77C-45E1-86BA-A3F7AA06ED18 Lysmatella prima Borradaile, 1915 ( Fig. 14 ) Lysmatella prima Borradaile, 1915: 209 ; 1917: 404; Chace, 1997: 78. Hippolysmata ( Lysmatella ) prima Kemp, 1916: 404 ; Holthuis, 1947: 72. Material examined. MBM270997 , 1 ovig. ♀ (cl 4.64 mm ), Beibu Gulf , South China Sea , 1960-4-13 , st. 6250, 33.5 m , shell and sand, AT, no. Q173B-43, coll. Fu-Zeng Sun. Description. Rostrum and carapace about of equal in length; dorsal margin with 6–9 teeth; ventral margin with 5–7 teeth. Carapace with small tooth on gastric region; with antennal tooth and pterygostomian tooth. Pleurae of fourth and fifth abdominal somites each with small posteroventral tooth. Telson about 1.5 times as long as sixth somite, dorsal surface © Zoological Systematics , 40 (2): 107–165 with 2 pairs of dorsolateral spines. Apex of telson acutely pointed with two pairs of spines and one mesial pair of stiff setulose setae. Antennular peduncle reaching distal margin of antennal scale; stylocerite short, not reaching midpoint of first segment of antennular peduncle. Antennal scale 3.6 times as long as wide; falling short of apex of rostrum; lateral margin with distolateral tooth beyond lamella. Antennular peduncle bearing dorsal flagellum and ventral flagellum; dorsal flagellum without accessory branch. Mandible only with molar process. Third maxilliped with exopod, overreaching distal margin of antennal scale by 2/3 ultimate segment, which bearing 6–8 corneous spines distally. First pereopod overreaching antennal scale by dactylus; which 0.6 times as long as palm; merus and chela of equal length. Second pereopod overreaching antennal scale by half of carpus; dactylus shorter than © Zoological Systematics , 40 (2): 107–165 palm; carpus subdivided into 20–24 articles; merus subdivided into 9–12 articles; ischium with 2 articles distally. Third pereopod overreaching distal margin of antennal scale by propodus; biunguiculate dactylus armed with 2–4 accessory spines along entire length of flexor margin; merus with 5–8 distolateral spines. Fourth pereopod overreaching antennal scale by half of propodus; merus with 5–7 distolateral spines. Fifth pereopod overreaching antennal scale by dactylus; merus with 5–7 distolateral spines. Fig. 14. Lysmatella prima Borradaile, 1915 . A. Carapace, lateral view; B. Abdominal pleurae, lateral view; C. Telson, dorsal view; D. Antennular peduncle, lateral view; E. Antennal scale, dorsal view; F. First pereopod, lateral view; G. Second pereopod, lateral view; H. Third pereopod, lateral view. Scale bars = 1 mm. Distribution. South China Sea; Maldive and Andaman Islands, Japan , Philippines , and Indonesia ; 0– 70 m .