REPORT ON THE AMPHIPODA. 551 



The mouth-organs and pleon seem to be in minute agreement, while the antenna; and 

 gnathopods have a full generic correspondence. 



Coropliium lewlenfeldi, n. sp., pi. xx. fig. 1, is next described. This, however, cannot stand in 

 the genus Coro2>hium, since it has a secondary appendage on the upper antennae, the first 

 gnathoj^ods are not subchelate, the second gnathopods are without the characteristic 

 prolongation of the third joint, and the third uropods are biramous. The species is, 

 moreover, now recognised as identical with Gammarus harhimanus, G. M. Thomson, 

 1879, which no doubt belongs to Haswell's genus Haphicheira. Panoplcea trandurens 

 n. s., pi. xxi. fig. 3, is next described, as closely related to, and taken in company with, 

 Panoplcea debilis, Thomson, for which see Note on Thomson, 1880. 



The new genus Biirmna is thus defined : — " Body broad, coxse very shallow. Antenna 

 subequal, upper without a secondary appendage. Mandibles without an appendage. 

 ]Maxillipedes with well-developed plates on both basos and ischios. Gnathopoda equal, not 

 subchelate. Last segment of pleon and its appendages rudimentary. Telson simple, not 

 divided." The type species is Birrenna fidvus, n. s., pL xxi. fig. 1 (Birrenna fulva at p. 

 265). Mr. Chilton thinks it may come near to Plilias, but he is very uncertain. 



1884. Chilton, Charles. 



Notes on a few Australian Edriophtlialmata. Extracted from Vol. IX., Part 

 4, of the " Proceedings of the Linnean Society of New South Wales." 10 pp. 

 PL 46. 47. 1884. 



In this paper Mr. Chilton proposes the specific name " Coogeensis" for a variety of AUorchesten 

 crassicornis, Haswell, pi. 46. fig. 1., but this variety according to Haswell is not Allorchestes 

 crassiconiin, but the female of TalorrliesUa quadrimana, Dana. He describes Glycerina 

 afflnis,n. s.,Y>l. 47. fig. 1., which " closely resembles G. tenuicornis, Haswell" ; Mcera /estiva, 

 n. s., pi. 46. fig. 2., which, according to Mr. Haswell, belongs to Miera ruhroniaculata ; gives 

 notes on Megamxera {Mmra) mhcamiata, Haswell, to which he finds that Mmra petriei, 

 Thomson, is a synonym, and on Amphithoe setosa, Haswell ; discusses the relations of 

 Micfodeuferopus mortoni, Haswell, Mv-rodeuferopus tenuipes, Haswell, MicrodeuUropus 

 maculatus, Thomson, with one another and with Aora typica, and suggests the possibOity 

 that Pararwsnia typica, Chilton, is the same as Mnera approximans, Haswell. 



Mr. Chilton further suggests that the genera Airra and Microdeuteropus will eventually have to 

 be combined. 



He transfers Montagua miersii, Haswell, which he had previously renamed Montaguana miersti, 

 to Costa's genus ProhiJium, but without saying whether it has or has not mandibular palps, 

 so that it remains uncertain whether it should be placed in the genus Stenothoe, Dana, of 

 which Costa's Probolium is a synonym, or in Hetopa, Boeck. 



1884. Chilton, Charles. 



The distribution of terrestrial Crustacea. The New Zealand Journal of Science. 

 Vol II. No. 4. Dunedin, N. Z. July, 1884. pp. 154-157. 



Arguing that similar variations ma}' arise independently, where animals of the same family are 

 .separately subjected to new but similar conditions of life, Mr. Chilton says, "We know that 

 this is true to a certain extent at any rate, for the teiTestrial Ampbipoda and Isopoda have 

 without doubt arisen independently, and yet in both tlie inner antenna; have become very 

 small — rudimentary in the Isopoda, nearly so in Amphipoda, — and in both the mandible 



