OCR Text |
Show 1879.] THE COREAN AND JAPANESE SEAS. 29 broad, with an obscure tooth on its outer margin. Anterior legs in the female small; hands compressed, and fingers straight; the ambulatory legs short, those of the first pair not much exceeding in length the greatest breadth of the carapace. Length of carapace and rostrum 1 inch 2 | lines, breadth 11| lines. Two specimens, females, were obtained, one at Kunashir (Kunasiri Island ?), N. Japan, at a depth of 11 fathoms, bottom small stones ; the other from the N.E. coast of Yeso Island. The nearest ally of this species seems to be the Doclea gracilipes of Stimpson (P. Ac. Nat. Sci. Phil. p. 216, 1857), from Hong-Kong, from which it differs in the tuberculation of the carapace and very short anterior legs. Streets, in a notice of the genus Libinia (P. Ac. Nat. Sci. Phil. p. 106, 1870), has described a new species, L. rhomboidea, from the East Indies, which may easily be distinguished from the present by the existence of strong spines on the branchial regions and lateral margins. Another Asiatic species is the Libinia bidentata, A. M.-Edw. (Journ. Mus. Godeffroy, i. pt. 4, p. 77, 1873), from the Amoor, which has fewer spines upon the surface of the body. Several Doclece have also been described by Bleeker (Acta Soc. Sci. Indo-Neerl. ii. pp. 7-15, 1857), from the Indian archipelago; but none have any near affinity with Libinia orientalis. PARTHENOPID^E. GONATONOTUS PENTAGONUS. Gonatonotus pentagonus, Ad. & White, P. Z. S. 1847, p. 58; Zool. Samarang, Crust, p. 33, pi. vi. fig. 7 (1848). Javan Sea, near Billiton Island, lat. 3° 21' S., long. 108° 39' E. Dredged at a depth of 12 fathoms. The single specimen collected is a male, and differs from the female from Borneo, figured by Adams and White, only in the greater length and strength of the anterior legs; the postabdomen is seven-jointed and narrow. There are two young specimens of this species, from reefs on the N.E. coast of Australia, in the British-Museum collection. This is the only species of Crustacean collected elsewhere than in the Japanese and Corean seas. LAMBRUS INTERMEDIUS, sp. n. Carapace triangular, almost destitute of tubercles above, and without large spines on the margins; on the upper surface are three elevated ridges, one on the gastric and cardiac, and one on each branchial region; the median ridge is marked with about four obscure tubercles; the branchial ridges are obscurely granulated ; and on the sides of the branchial regions are seven to eight small triangular marginal teeth, which under a lens are seen to be denticulated; the last of these is the largest; on the posterior margin are seven small distant tubercles. There is an elongate depression between the eyes. The rostrum is triangular, smooth and acute; the anterior legs are of moderate length |