Lysmata ternatensis De Man, 1902

Xu, Peng & Li, Xin-Zheng, 2015, Report on the Hippolytidae Bate (sensu lato) from China seas, Zoological Systematics 40 (2), pp. 107-165 : 128-130

Lysmata ternatensis De Man, 1902 ( Fig. 12 )

Lysmata seticaudata var. ternatensis De Man, 1902: 846 . Type locality: Temate , Indonesia, possibly also Ambon and, less likely, Japan. Hippolysmata acicula Rathbun, 1906: 912 , pl. 24, fig. 6.

© Zoological Systematics, 40 (2): 107–165

Lysmata affinis Borradaile, 1915:209 .

Lysmata dentata Holthuis, 1947:64 .

Lysmata ternatensis Chace, 1997: 77 .

Material examined. MBM129611 , 2 ♂ (cl 3.11, 3.62 mm), 1 ovig. ♀ (cl 5.19 mm), 1 ♀ (cl 4.66 mm), Hainan, Xisha Islands, Shanhu Island , 1980-5-19, no.80X-157 ; MBM136640 , 1 ovig. ♀ (cl 6.55 mm), Bei Island , 1957-4-30 ; MBM 136606 , 1 ♂ (cl 4.89 mm), Shandong, Rongcheng, Shi Island , 1957-5-13 ; MBM136451 , 1 ♀ (cl 5.69 mm), Shandong, Rongcheng, Shi Island , 1958-4-6, no.58C-140, coll. Zhen-Gang Fan & Jie-Shan Xu ; MBM136457 , 1 ovig. ♀ (cl 4.72mm), Hainan, Nansha Islands, Wude Island , 1958-3-31, no.56C-093, coll. Zhen-Gang Fan & Jie-Shan Xu ; MBM136442 , 1 ♀ (cl 3.26 mm), Hainan, Xisha Islands, Celiang Beach , 1958-4-28, no.58C-612, coll. Zhen-Gang Fan & Jie-Shan Xu ; MBM136528 , 1 ♂ (cl 3.11 mm), Hainan, Nansha Islands, Wude Island , 1957-5-17, no.57-109 .

Description. Rostrum short, nearly straight, slightly descending, reaching midpoint of antennal scale; dorsal margin with 4–6 teeth; ventral margin with 2–4 teeth distally. Carapace with antennal tooth, tiny pterygostomian tooth and bearing with small tooth on gastric region. Pleurae of fourth and fifth abdominal somites each with small posteroventral tooth. Sixth somite 1.8 times as long as fifth mid-dorsal length. Telson about 1.8 times as long as sixth somite; dorsal surface with 2 pairs of dorsolateral spines; posterior margin of telson with 1 pair of spines and 1 mesial pair of stiff setulose setae.

© Zoological Systematics, 40 (2): 107–165

Antennular and antennal flagellums developed; dorsal antennular flagellum with distinct accessory branch of about 10–15 articles; first segment of antennular peduncle longer than combination of second and third segments; stylocerite reaching distal end of first segment of antennular peduncle; second segment reaching midpoint of antennal scale. Antennal scale slender, 4.1 times as long as wide; lateral margin ending in spine beyond lamella.

Third maxilliped with exopod; overreaching antennal scale by half length of ultimate segment which with 6–8 corneous spines distally. First pereopod slightly overreaching distal margin of antennal scale; dactylus about half length of palm; carpus slightly shorter than chela; merus being in same length withchela. Second pereopod slender; carpus subdivided into 20–28 articles; merus subdivided into 12–18 articles; distal one third part of ischium with 2 articles.

Third to fifth pereopods with similar structure. Third pereopod overreaching distal margin of antennal scale by propodus; flexor margin of biunguiculate dactylus with 3–4 spinules; flexor margin of propodus with 6–10 spinules; merus with 3–7 distolateral spines. Merus of fourth pereopod with 2–5 distolateral spines. Fifth pereopod overreaching antennal scale by dactylus; merus with 1–3 distolateral spines.

Distribution. Yellow Sea, East China Sea, South China Sea; Seychelles, Laccadives, Chagos Archipelago, Japan, Indonesia; 0– 50 m.

Figures

Fig. 12. Lysmata ternatensis De Man, 1902. A. Carapace, lateral view; B. Abdominal pleurae, lateral view; C. Antennule, dorsal view; D. Dorsal antennular flagellum, lateral view; E. Antennal scale, dorsal view; F. Second pereopod, lateral view. Scale bars= 1 mm.