272 Transactions. 



Exosphceroma, which differs from Sphceroma in having the last 

 three joints of the maxillipeds lobed on the inner side. 



Cymodoce^huttoni (G. M. Thomson). Index Faunae N.Z., p. 263.* 

 One specimen collected by Professor H. B. Kirk. This species 

 is very common all round the coasts of New Zealand, and I have 

 specimens also from the Antipodes Islands (Dr. L. Cockayne). It 

 appears to be closely allied to Dynamene eatoni,\ Miers, from 

 Kerguelen, which is recorded also from Cape Horn by M. Adrien 

 Dollfus in the " Mission du Cap Horn," Crust., p. F, 66. 



(?) Isocladus spiniger (Dana). Index Faunse N.Z., p. 263. 



Numerous specimens from Te Whakuru (Miss Shand). These 

 differ in several points from Lyttelton and other specimens that 

 I have been in the habit of referring to Dana's species, and may 

 prove to be a new species. They are rather larger, and lack the 

 small teeth at the base of the large spine arising from the last 

 segment of the pereion. The colour is brownish with darker 

 markings, the edges of the epimera, bases of the antennae, &c, 

 being reddish. 



Paridotea ungulata (Pallas). Index Faunse N.Z., p. 264. 



Specimens from Te Whakuru (Miss Shand). This species 

 is widely distributed in the southern seas. Stebbing in his 

 " Report on the South African Crustacea," pp. 53-55, instituted 

 for it the new genus Paridotea, and describes the mouth parts 

 and other structures more fully than had hitherto been done. 

 He points out that his large dredged specimens have the 4th, 

 5th, and 6th joints of both gnathopods and first four pereipods 

 thickly coated with hair on the inner margin, while the corre- 

 sponding parts in the smaller beach specimens sent to him were 

 comparatively smooth. I have taken specimens of both kinds 

 together in shallow water on the sea-beach, and can state that 

 the differences are sexual — the fine woolly hairs being found on 

 these parts in large fully developed males, but not in the mature 

 females, and probably not in immature males. 



Idotea peronii, M. -Edwards. Index Faunse N.Z., p. 264. 



Three specimens from Te Whakuru (Miss Shand), reddish- 

 brown or orange in colour (in formalin). One is a female with 

 eggs in pouch, and has the 2nd, 3rd, and 4th segments of pereion 

 somewhat expanded. The colour and markings of this species, 

 though variable, are very protective, and resemble those of the 

 red seaweeds on which it is found. One specimen has a median 



* This species cannot remain in the genus Cymodocc as now define* 1 I > v 

 Hansen. It appears to belong to the new genus Dynamella, Hansen. See 

 Q.J.M.S., vol. xlix, p. 107. 



t Annals and Mag. Nat. Hist., xvi, p. 73 (1875). 



