Report on the zoological collections made in the Indo-Pacific Ocean ...

-CRUSTACEA. 309inner ramus of the uropoda, have the external genital appendagesproper to the male sex, which are not to be found on any of thespecimens I regard as the females of this species, several of which,on the contrary, carry ova. In several instances I have found thetwo forms associated in the same phial in the Museum collection.I refer to this species the following females in the ' Alert ' collection,which may, however, belong to the variety crassicaudata,HaswellAn adult example from Port Jackson, 5-7 fms. (No. 104), whencealso Mr. Haswell records it as Cymodocea pubescens ; also one fromThursday Island, 4-5 fms. (No. 165). These specimens have theouter ramus of the uropoda acute, with a strong tooth on its outermargin, and closely resemble S. jnibescens as described by Milne-Edwards.Smaller specimens are in the collection from Port Curtis, 7 fms.,and Albany Island, 3-4 fms., which have the body less pubescentand the postabdomen more distinctly granulated, the rami of theuropoda somewhat shorter, the outer ramus subacute or even obtuse,with the tooth on its outer margin very faintly defined or obsolete.The rounded elevations on the upper surface of the terminalsegment vary much in prominence in this species. In two femalesfrom King George's Sound, West Australia, which may belong to adistinct species, they are very prominent, conical, and subacute.An approach to this form is, however, exhibited in one of Leach'stypes (a male).A good series of both sexes of Ciliccea latreillei from the Australianseas is in the British Museum from the collection of the lateDr. J. S. Bowerbauk. Unfortunately the exact locality has not beenpreserved.Mr. Thomson * has described a species of this genus (as I think)from Dunedin, New Zealand, under the name of Nasea ccmicidata,which is allied to 0. latreillei, but distinguished by the broadlytruncated process of the first postabdominal segment.11. Cilicsea latreillei, var. crassicaudata (Haswell).A male and female are in the collection from the Arafura Sea,32-36 fms. (No. 160), and also a male and two females withoutspecial indication of locality (No. 123).This form comes extremely near to Ciliccjea latreillei, Leach, andmust, I think, be considered a mere variety of it. It is distinguishedby the longer, less conical median process of the penultimate postabdominalsegment, and the much longer outer ramus of the uropoda,which is not toothed on its outer margin,I have observed males of the typical form in which the tooth onthe outer margin of the outer uropod is obsolete.There is in the British-Museum collection a specimen from Bass* Trans. New-Zeal. Inst. xi. p. 234, pi. x. fig. A 7 (1879).