CRUSTACEA NORTH PACIFIC EXPLORING EXPEDITION I 57 



It was dredged in sixteen fathoms, on shelly and gravelly mud, off 

 the coast of China, near Soon-Koo and Hongkong Islands ; also in 

 the North China Sea, in latitude 23° N., at the depth of twenty-five 

 fathoms. 



Genus I PHIS Leach 



257. IPHIS SEPTEMSPINOSA ' (Herbst) Leach 



Cancer sc ptcinspinosiis Herbst, Naturg. d. Krabben und Krebse, i, pi. .x.x, 



fig. 112. 

 Leucosia scptcmspinosa Fabricius. 

 Iphis septemspinosa Leach, Milne Edwards, Hist. Nat. des Crust., 11, 



139; Illnst. Cuv. R. A.. Crust., pi. x.w, fig. 4. Bell, Lin. Trans., 



XXI, 311. 



The color in life is pale brick-red above, white below. In one of 

 our specimens the width between the tips of the lateral spines is 2.15 

 inches. In the young these spines are proportionally shorter. 



Several specimens were taken in the trawl on a muddy bottom in 

 twenty fathoms, off the coast of China, near Hongkong. 



Genus IPHICULUS Adams and White 



The affinities of the crustaceans upon which this genus was 

 founded have been hitherto a matter of conjecture only, owing to 

 the imperfect manner in which it was characterized by its original 

 describers, and their doubtful reference of it to two very distinct 

 groups of IJrachyura, the Parthenopidse and the Leucosidea. They 

 place it. indeed, among their descriptions of Leucosidea, but say in 

 tlieir n()tc' that ''it appears, among the Parthenopid?e, to hold the 

 same place as Orcophorus does among the Leucosidne." While, 

 curiousl}' enough, the generic name which they have a])pliod t<> it is 

 a diminutive of that of its nearest congener I phis, and thus indicates 

 its true position. 



Dana, having on!}- the figures of .\(lams and Wliik' to judge 

 from — the characters of the antenna^, maxillipeds. and other essen- 

 tial parts generally not being mentioned in their descri])tion — con- 

 sidered it allied to or identical with Pol yd cc tits,'- from the similar 

 character of the hand, in which the long, slender fingers are armed 

 with needle-like spines along tluir inner margins. This kind of 



' Arcaniii srpli'iiispi)U)SiJ (Fabricius). 

 'V. S. l^-xpliiring F.xiH'iIition, Crust., i. 



