Periclimenes tosaensis Kubo, 1951

Li, Xinzheng, Bruce, Alexander J. & Manning *, Raymond B., 2004, Some Palaemonid Shrimps (Crustacea: Decapoda) From Northern South China Sea, With Descripitions Of Two New Species, Raffles Bulletin of Zoology 52 (2), pp. 513-553 : 548-549

Periclimenes tosaensis Kubo, 1951

( Fig. 33 )

Periclimenes (Ancylocaris) tosaensis Kubo, 1951: 268 , Figs. 7 , 8 .

Periclimenes (Harpilius) tosaensis - Bruce, 1966: 15, Figs. 1 , 2 , 3a , 4a, b .

Periclimenes tosaensis - Bruce, 1981: 196, Fig. 5 ; 2003: 243; Chace & Bruce, 1993: 124; Müller, 1993: 113; Debelius, 1999: 177, photo; Li, 2000: 243, Fig. 323.

Material examined. – 1 male, 1 ovig female, CN S55 B-28, [22ºN, 116ºE], 89m, mud, AT, coll. W. Zhang, 5 Apr.1959 ; 2 females, CN SIII7 B-34, [21ºN, 114ºE], 80m, sandy mud, AT, coll. W. Zhang, 10 Jul.1959 ; 1 female, CN N67 B-39, [19º30’N, 111ºE], 38m, sand, AT, coll. Z. Tang, 13 Jul.1959 ; 1 male, CN N93 B-56, [19ºN, 111ºE], 90m, muddy sand, AT, 28 Oct.1959 ; 1 female, CN S176 B-14, [23º15’N, 117º30’E], 42m, sand, AT, coll. Wu, 4 Jan.1960 ; 1 female, CN N122 B-28, [19º30’N, 111º15’E], 97m, sandy mud, AT, coll. J. Y. Liu, 10 Feb.1960 ; 1 male, CN N148 B-69, [18ºN, 109º30’E], 74m, sandy mud, BT, coll. J. Y. Liu, 11 Mar.1960 ; 1 male, CN S206 B-20, [21º15’N, 114ºE], 68.5m, mud, AT, coll. Qu, 8 Apr.1960 ; 3 ovig females, 1 female (SI), CN S218 B-36, [21ºN, 115ºE], 107m, muddy sand, AT, coll. Qu, 13 Apr.1960 ; 2 females, CN S227 B-31, [22ºN, 116ºE], 84m, mud, AT, 22 Apr.1960 ; 1 ovig female, CN N207 B-34A, [17º45’N, 109º30’E], 97m, sandy mud, BT, coll. J. Y. Liu, 14 May.1960 ; 1 male, CN X171 B-9B, [20 15’N, 108 E], sand, 54m, AT, coll. F. Sun, 21 Jan.1959 ; 1 female, CN X147 B-23, [19 N, 105 45’E], sandy mud, 37m, AT, coll. F. Sun, 7 Jan.1962 ; 1 female (ovig), CN N166 B-13, [21 N, 111 30’E], mud, 41m, BT, coll. J. Y. Liu, 6 Apr.1960 ;15) 2 males 3 females (1 ovig), CN N145 B-89, [18 N, 110 E], muddy sand, 94m, AT, coll. S. Shen, 10 Mar.1960 ; 2 females (ovig), CN N148 B-49, [18 N, 109 30’E], sandy mud, 74m, BT, coll. J. Y. Liu, 11 Mar.1960 ; 1 male, CN N151 B-26, [17 N, 109 30’E], mud, 164m, BT, coll. J. Y. Liu, 11 Mar.1960 ; 1 female, CN N95 B-47, [19 30’N, 111 E], sand, 39m, AT, coll. H. Li, 29 Oct.1959 ; 1 male, CN N48 B-38, [21 N, 108 30’E], mud, 35m, AT, coll. Z. Tang, 20 Apr.1959 ; 20 males, 13 females (9 ovig) ( IOCAS) , 1 male, 1 ovig female ( ZRC), CN S229 B-3, [22 N, 116 30’E], sand, 88m, AT, S. Lu, 23 Apr.1960 ; 2 females (ovig), CN 9-42 , [22 15’N, 116 E], sand, 64m, AT, coll. W. Zhang, 25 Jan.1959 ; 1 male, CN S228 B-9, [21 45’N, 116 00’E], sand, 98.8m, AT, coll. J. Qu, 23 Apr.1960 ; 1 male, 1 female (ovig), CN S155 B-20, [22 N, 115 30’E], mud, 78m, AT, coll. W. Zhang & S. Wu, 20 Nov.1959 ; 1 male, CN S219 B-6, [21 30’N, 115 30’E], muddy sand, 115m, AT, coll. J. Qu, 13 Apr.1960 ; 1 female (ovig), CN S214 B-27, [22 15’N, 115 E], mud, 41m, AT, coll. J. Qu, 12 Apr.1960 ; 1 female, CN S216 B-49, [21 45’N, 115 E], mud, 81.5m, AT, coll. J. Qu, 13 Apr.1960 ; 1 female, CN S210 B-37, [21 30’N, 114 30’E], mud, 73m, AT, coll. J. Qu, 8 Apr.1960 ; 2 females, CN S208 B-30, [21 N, 114 30’E], muddy sand, 83m, AT, coll. J. Qu, 8 Apr.1960 ; 2 females (1ovig), CN 14-27 , [21 15’N, 114 E], 66m, AT, coll. W. Zhang, 17 Mar.1959 ; 1 male, CN S138 B-32, [21 30’N, 113 45’E], sand, 45m, AT, S. Wu, 9 Dec.1959 ; 1 juv., CN R281 B-11, [20 N, 107 30’E], sand, 30m, AT, coll. W. Zhang, 5 Nov.1960 ; 2 males, 6 females, CN R142 B-31, [20 N, 107 30’E], sand, 33m, AT, coll. F. Sun, 9 Feb.1960 ; 1 female (ovig), CN Q116 B-21, [22 15’N, 116 E], sand, 49.5m, AT, coll. Y. Wang, 10 Jan.1960 ; 1 female (ovig), CN Q27- 10 , [19 N, 110 45’E], sandy mud, 80m, BT, coll. Z. Fan, 5 Apr.1959 ; 1 female (ovig), CN Q40 B-2, [17 45’N, 109 30’E], sandy mud, 84m, BT, coll. Z. Fan, 9 Apr.1959 ; 1 female (ovig), CN Q54 B-17, [17 N, 108 30’E], muddy sand, 93.5m, BT, coll. F. Xu, 15 Apr.1959 ; 1 female (ovig), CN Z15 B-12, [19 N, 107 30’E], sandy mud, 67.6m, AT, coll. Z. Fan, 16 May.1960 ; 1 female (ovig), CN SIII32 B-5, [22 45’N, 116 30’E], sand and shell pieces, 33m, AT, coll. W. Zhang, 20 Jul.1959 ; 5 females, CN SIII29 B-1, [22 N, 116 30’E], sand, 86m, AT, coll. W. Zhang, 20 Jul.1959 ; 1 male, CN S65 B-3, 87m, [21 45’N, 115 E], AT, coll. W. Zhang, 8 Apr.1959 ; 1 female, CN SIII16 B-29, [21 45’N, 115 E], mud, 83.7m, AT, coll. W. Zhang, 13 Jul.1959 ; 3 females (2 ovig), CN SIII1 B-15, [21 45’N, 114 E], mud, 43.5m, AT, coll. W. Zhang, 9 Jul.1959 ; 1 female, CN SIII6 B- 9, [21 15’N, 114 E], mud, 73m, AT, coll. W. Zhang, 10 Jul.1959 ; 2 females (1ovig), CN S75 B-24, [21 45’N, 113 45’E], 34m, AT, S. Wu, 19 Apr.1959 ; 1 male, 1 female, CN R10 B-23, [20 N, 107 30’E], sand and shell pieces, 32m, AT, coll. Liang & W. Zhang, 5 Dec.1959 ; 1 female, CN K164 B-7, [20 N, 113 30’E], muddy sand, 129m, AT, coll. Z. Tang, 9 Apr.1960 ; 1 male, 1 female, CN K28 B-25, [21 N, 112 30’E], muddy sand, 54m, AT, coll. F. Sun, 18 Apr.1959 ; 1 male, 2 females (ovig), CN L46 B-71, [20 N, 111 30’E], sandy mud, 76.5m, AT, coll. X. Ma, 12 Apr.1959 ; 2 males, CN SIII11 B-1, [21 45’N, 114 30’E], soft mud, 62.4m, AT, coll. Weiquan Zhang, 11 Jul.1959 ; 1 male, CN SIII4 B-6, [21 30’N, 113 45’E], coarse sand, 40m, AT, coll. Jingzuo Qu, 9 Jul.1959 ; 4 females (1 ovig), CN SIII11 B-1, [22 15’N, 115 E], sandy mud, 42m, AT, coll. Jingzuo Qu, 13 Jul.1959 ; 1 female, CN Q121 B-11, [22 15’N, 116 30’E], sandy with shells, 45m, AT, coll. Shaowu Wang, 11 Jan.1960 ; 1 male, 2 females, CN SIII26 B-8, [22 15’N, 116 E], muddy sand, 51.3m, AT, coll. Jingzuo Qu, 19 Jul.1959 .

Diagnosis. – Rostrum not exceeding scaphocerite, ventral margin concave, with 1 + 6-9 dorsal teeth, posteriormost tooth isolated from rest and slightly anterior to level of hepatic spine, with 2 small subapical ventral teeth. Carapace without supraorbital spine, hepatic spine distinctly larger than antennal spine, lower than latter; orbital angle produced anteriorly into acute suboval lobe. Fourth thoracic sternite without median process. Abdomen with low, compressed median prominence on 3rd somite. Scaphocerite with lateral margin slightly concave, distolateral tooth not exceeding distal margin of lamella. Second pereiopods robust; without distoventral tooth on merus; carpus about 0.8 as long as palm, unarmed distally; chela with fingers 0.67 to subequal to palm. Ambulatory pereiopods with dactyl simple; propodus with very long spines on distal half of flexor margin; fifth pereiopods not reaching end of scaphocerite.

Distribution. – Seychelles Islands, South China Sea, Japan, Philippines.

Remarks. – After Kubo (1951) described this species from Tosa Bay, Shikoku Japan, it has been recorded from Seychelles and South China Sea ( Bruce, 1966, 1981). The rich samples (114 specimens from 48 stations/times) collected from northern South China Sea show that this is a very common species in this area and maybe in all the South China Sea and adjacent waters. It is very easy to distinguish it from other members of aesopius- group by its simple dactyls on the ambulatory pereiopods, which is unique in this group. The previous collection depth records were from about 42- 134 m (42m, Seychelles, Bruce, 1976; 58.5 and 80.5-86m, northern South China Sea, Bruce, 1979a; 122-134 m, Philippines, Bruce, 1981; 50-60m, Tosa Bay, Hayashi, 1986). The present records are from 30 to 164 m depth, expand the bathymetric range of this species. This species ranges widely in depth, most of the specimens axamined in this study were caught from 30 to 98.5 m depth.

Figures

Fig. 33. Periclimenes tosaensis Kubo, 1951. a, anterior region of carapace and rostrum, lateral view; b, 2nd pereiopod; c, dactyl and apex of 3rd pereiopod.

Fig. 7. Leptocarpus potamiscus (Kemp, 1917). a, carapace and rostrum; b, mandible, lateral view; c, 2nd pereiopod.

Fig.8. Macrobrachium mammillodactylus (Thallwitz, 1892). a, carapace and anterior appendages, lateral view; b, mandible; c, 2nd pereiopod; d, same, chela and carpus; e, telson and uropod.

Fig. 1. Coutierella tonkinensis Sollaud, 1914. a, carapace and rostrum, lateral view; b, mandible; c, 1st maxilliped; d, telson; e, tip of telson.

Fig. 2. Exopalaemon orientis Holthuis, 1950. a, carapace and rostrum, lateral view; b, mandible; c, 1st pereiopod; d, 2nd pereiopod; e, 3rd pereiopod; f, same, dactyl and propodus; g, 5th pereiopod; h, same, dactyl and propodus.

Fig. 3. Leander tenuicornis (Say, 1818). a, carapace and rostrum, lateral view, female; b, same, male; c, antennule.

Fig. 4. Leandrites stenopus Holthuis, 1950. a, carapace and rostrum, lateral view; b, eye; c, antennule; d, scaphocerite; e, telson and uropod, dorsal view; f, tip of telson; g, eggs.

Fig. 5. Leandrites stenopus Holthuis, 1950. a, b, carapace and rostrum, lateral view; c-e, mandible, c, d, right, e, left; f, maxillula; g, maxilla; h, 1st maxilliped; i, 2nd maxilliped; j, 3rd maxilliped.