Plesionika izumiae Omori, 1971

Li, Xinzheng, 2006, Additional Pandaloid Shrimps From The South China Sea (Crustacea: Decapoda: Caridea), With Description Of One New Species, Raffles Bulletin of Zoology 54 (2), pp. 361-372 : 369

Plesionika izumiae Omori, 1971

Plesionika izumiae Omori, 1971: 242 , Figs. 1 , 2 . [type locality:

Suruga Bay, Japan]; Li & Komai, 2003: 261; Li, 2004: 821. Plesionika izumiae ? – Chace, 1985: 75, Fig. 34.

Material examined. – 1 female, CN 56 -K187, off Zhelang , Shanwei, Guangdong Province, China, 10 Mar.1956 ; 50 ex., CN 56 K-237, Haimen fishery harbor, Zhejiang Province, China, coll. Liu, 12 Mar.1956 ; 1 male, CN S57 B-35B, South China Sea, 21 ° 30'N 115 ° 30'E, 115 m, AT, coll. Weiquan Zhang, 5 Apr.1959 ; 1 male, CN Q33 B-6, South China Sea, 17 ° 45'N 110 ° 30'E, 170 m, soft mud, BT, coll. Zhengang Fan, 6 Apr.1959 ; 1 male, CN Q86 B-5, South China Sea, 17 ° 00'N 109 ° 30'E, 121.5 m, muddy sand, AT, coll. Li, 22 Nov.1959 ; 1 female, CN K122 B-59, South China Sea, 19 ° 00'N 112 ° 30'E, 300 m, coarse sand, AT, coll. Shoupeng Shen, 8 Feb.1960 ; 17 males, 19 females (18 ovigerous), CN S236 B-9, South China Sea, 23 ° 15'N 117 ° 00'E, 23 m, muddy sand, AT, coll. Jingzuo Qu, 24 Apr.1960 ; 1 male, CN N196 B- 54, South China Sea, 18 ° 30'N 110 ° 30'E, 93 m, muddy sand, AT, coll. Jixing Liu, 7 May.1960 .

Distribution. – Philippines, South and East China Seas, Japan, at depths of 22- 300 m.

Remarks. – A very common pandalid species in the East China Sea, southern Japanese coast and the northern South China Sea. When it was described from the Suruga Bay, it was mentioned to be abundant ( Omori, 1971). Since then, the species has been reported as a common pandalid shrimp from southern Japanese coasts (Hayashi & Koike, 1976), the East China Sea (Jiang et. al., 1985; Wang, 1987), and the northern South China Sea off Guangdong Province and Beibu Gulf (Tokin Gulf) (Li & Komai, 2003; Li, 2004). However P. izumiae seems to be uncommon in the Sulu Archipelago ( Chace, 1985). The present record extends the bathymetric range from 209 m to 300 m depth.

Figures

Fig. 1. Heterocarpus chani, new species, female, holotype (cl 24.4 mm), Philippines, body, right lateral view. Scale bar = 5 mm.

Fig. 2. Heterocarpus chani, new species: a, eye and anterior carapace, left lateral view; b, body, left lateral view; c, rostrum and carapace, left lateral view. Female, holotype (cl 24.4 mm), Philippines: a; male, paratype (cl 18.5 mm), South China Sea: b; male, paratype (cl 19.6 mm), South China Sea: c. Scale bar = 5 mm.