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

CRirSTACKA. 321and shorter segments of the body and peduncular joints of thesuperior antennae, relatively longer inferior antenna), &c., as a comparisonof the figures will show ; but as Mayer refers to this species(founded upon types from Rio de Janeiro) specimens sent to him byMr, Haswell from Port Jackson, and our specimen agrees with Dana'sfigures of the male in the denticulation of the palms of the secondlegs and in other characteristic points, T do not venture to regard itas distinct.CapreUa novce-zecdandioi of Kirk * comes very near this species,but differs in the form of the non-ciliated joints of the flagellum ofthe superior antenna3, and the penultimate joint of the second legs isarmed (apparently) with but two teeth. Both C novce-zealandiasand Protdla austruUs, which greatly resemble this species, have aspine or tooth on the penultimate joint of the three posterior legs, ofwhich scarcely any indications exist in the specimens I refer toC. attenuata.Two other very small Caprellce, also obtained at Port Jackson,are in the collection, which I am unable to identify with certainty,but do not think it desirable to designate by a distinct specificname.OSTRACODA.The few Ostracoda collected were submitted to Dr. G. S. Bradyfor determination, who referred them to the following species :—1. Cypridina albo-maculata, Baird.The specimens collected were from Port Darwin, 12 fms., andDundas Straits, 17 fms. (No. 161). The original types were fromWestern Australia, Swan River.CIRRIPEDIA.1. Balanus trigonus, Darwin.Numerous specimens (mostly small) were obtainedat Port Jackson,0-5 fms. (No. 90). Darwin records it from Sydney, andmentions its distribution through the Malaysian seas and its occurrenceat New Zealand and also on the W. coast of the Americancontinent.2. Balanus amaryllis, Danvin.A specimen from the beach at Port Darwin (No. 176), andseveral small specimens from Albany Island, 3-4 fms., attachedto a shell, appear to belong to this species. In the two largestspecimens, however, whose opercula I have examined, the scuta* Trans. New-Zeal. Inst. xii. p. 393 (1879).