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

CRUSTACEA. 249The differences in the form of the frontal lobes between the twospecies are, I may add, well shown in Targioni-Tozetti's figures(vide Crostacei ' della Magenta,' pp. 173, 176, pi. x, figs. 4 & 5,1877).AU the specimens of this genus from the Magellan Straits, Falkland,Kerguelen, and Auckland Islands, and New Zealand in thecollection of the Museum belong to H. planatus.Of //. ovatus there are specimens in the collection of the BritishMuseum from reefs on the iS^.E. coast of Australia (Saiimarez) andPort Jackson (Cuming). I believe a very small specimen from KingGeorge's Sound, S.W. Australia {F. M. liayner, H.M.S. Herald ' '),also belongs here. Mr. Haswell (Cat, p. 114) mentions the occurrenceof Hcdicarcimis planatus, which he refers to the genusBymenosoma, at Port Western ; but as he merely quotes thedescription and synonyms as given in my New-Zealand Catalogue,I cannot be certain whether his specimens belong to H. planatusor H. ovatus.95. Leucosia ocellata, Bell.A female example was obtained in the Arafura Sea at 32-36 fms.(No. 160).There are besides in the Museum collection only the specimen referredto by Bell as from " Eastern Australia." which was obtainedat Cape Capricorn, on the Queensland coast (J. MacAiillivray , H.M.S.'Eattlesnake '), and one without special locality collected by F. M.Eayner (H.M.S. ' Herald').Mr. Haswell records this species from Keppel Bay, Queensland.96. Leucosia whitei.Leucosia whitei, Bell, Trans. Linn. Soc. xxi. p. 289, pi. xxxi. fig. 2(1855) ;Cat. Leucosiidce Brit. Mus. p. 9 (1855) ; HasiueU, Froc.Linn. Soc. N. S. Wales, p. 45 (1880); Cat. Austr. Crtist. p. 118(1882).? Leucosia cheverti, Hastoell, t. c. p. 47, pi. v. fig. 2 (1880) ; Catalocjue,p. 120 (1882), var.A specimen from Flinders, Clairmont, N.E. Australia, dredged in11 fms. (No. 108), in the first collection, belongs here, and one fromPrince of Wales Channel, 9 fms. (No. 157,), second collection. Mr.Haswell records it from Princess Charlotte Bay, Cape Grenville, andBrook Island.I think that L. cheverti, Haswell, can scarcely be regarded asmore than a variety of L. ivhitei ; it is distinguished, according toits author, by the form of the front, which is obscurely (not distinctly)tridentate, and by the absence of granules on the hepaticregions. The hepatic granules, however, vary in number in thespecimens (four in number) in the Museum collection, and in oneare very obscurely marked. In two specimens from Shark Bay,W. Australia (F. M. Rayner, H.M.S. ' Herald '), which I think