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

CRUSTACEA. 253known. In the smallest (immature) female the postabdomen isrelatively narrow, and does not, as in the adult, coverthe whole ofthe sternal surface.Nursia abbreviata, Bell, must be added to the list of the Australianspecies of this family, since the specimens in the British-Museumcollection are from Moreton Bay, and were purchased with the typesof N, sinuata from the same locality.105. Nursilia dentata, Bell.In the first collection is a female from Flinders, Clairmont, N.E.Australia, 11 fms. (No. 108), and in the second an adult female andtwo smaller males from the Arafura Sea, 32-36 fms. (No. 160).These do not differ from the type (a female, without special indicationof locality, from the ' Samarang ' collection) in the BritishMuseum, except in the somewhat more prominent spines and marginalteeth of the carapace.Mr. Haswell mentions the occurrence of this species at the FitzroyIslands.There is in the collection of the British Museum a female fromthe Fiji Islands, Matuka {H.M.8. 'Herald'), in which the smallspines or tubercles of the gastric, hepatic, and branchial regions arenearly obliterated, as are also the lobes or teeth of the lateralmargins.In the final consignment of the collections of H.M.S. 'Alert' is aspecimen from the Seychelles. Hence this species is evidently distributedthroughout the Oriental region.106. IpMculus spongiosus, Adams Sf WJiiie.A small male was dredged in the Arafura Sea, 32-36 fms.(No. 160), which agrees with the larger specimens from the PhilippineIslands, Corregidor (Ciiminr/), and another specimen withoutdefinite locality, from the Samarang ' ' collection, in the BritishMuseum.Prof. Bell is certainly right in classing this genus with theLeucosiidsD, and in stating that it has no near afiinities with theParthenopidae, as supposed by Adams and White.107. Arcania pulcherrima, Haswell.Arcania septemspinosa, Bell, Tram. Linn. Soc. xxi. p. 310, pi. xxxiv.fig. 7 (1855) ; Cat. Leucos. Brit. Mus. p. 21 (1855). ^Arcauia pulcherrima, Haswell, Pruc. Linn. Soc. N. S. Wales, iv. p. 58,pi. yi. tig. 4 (1880) ; Cat. Austr. Crust, p. 131 (1882).An adult female from Prince of Wales Channel, 9 fms. (No. 157),and a smaller male from the Arafura Sea, 32-36 fms. (No. 160), arereferred here.A comparison of Mr. Haswell's description and figure oi A.pul-