Zoological results of a tour in the Far East . specimen has 214 specimens have 22I specimen has 23 ., ,, 26 Ventral specimens have 2 teeth. 5 1312 ,, 953I specimen has 9 288 ZOOLOGY OF THE FAR EAST. The specimens recorded by Miss Rathbun from Fusan in Korea, with 14 to 18teeth on the upper margin of the rostrum and 4 to 6 on the lower margin, most pro-bably belong to the subspecies sinensis, and this is almost certainly true of Dofleinsspecimens from Pekin with 14 to 16 dorsal teeth and 3 to 5 ventral. In the figuregiven by the latter author the deeply excavate anterior margin of the c
Zoological results of a tour in the Far East . specimen has 214 specimens have 22I specimen has 23 ., ,, 26 Ventral specimens have 2 teeth. 5 1312 ,, 953I specimen has 9 288 ZOOLOGY OF THE FAR EAST. The specimens recorded by Miss Rathbun from Fusan in Korea, with 14 to 18teeth on the upper margin of the rostrum and 4 to 6 on the lower margin, most pro-bably belong to the subspecies sinensis, and this is almost certainly true of Dofleinsspecimens from Pekin with 14 to 16 dorsal teeth and 3 to 5 ventral. In the figuregiven by the latter author the deeply excavate anterior margin of the carpus ofthe first legs is clearly shown. In both races the rostrum reaches almost to, or a little beyond, the apex of theantennular peduncle. Its upper border is dorsally concave with the distal quarter orthird of its length unarmed. Two or three of the posterior dorsal teeth are situatedon the carapace behind the level of the orbit. The preorbital length of the antennularpeduncle is about seven-tenths the post-orbital length of the Fig II.—Caridina denticulata (de Haan).a, h. Typical form. c, d. Subsp. sinensis, nov. a, c. Anterior part of animal in lateral , d. peraeopod. The merus of the third peraeopods bears 3, very rarely 4 teeth on its lower border ;the dactylus bears 7 to 10 spines in Japanese specimens, 8 to 13 in those from merus of the last pair of peraeopods also has 3 teeth on its lower edge ; the propo-dus is from 2|- to 2f times the length of the dactylus. The latter segment is about 4times as long as broad ; it bears about 40 to 60 teeth in Japanese specimens and about50 to 70 in those from China. The number of movable spines on the outer uropodvaries from 10 to 16. Large specimens reach a length of about 28 mm. ; none are ovigerous. According to notes made by Dr. Annandale on Japanese specimens the species inlife varies considerably in colour, as a rule it was brownish with mottled and marbled ( Crustacea Decapoda and Stomato
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmarineanimals, bookye
