344 Mr. A. 0. Walker on 



ISOPOD A. 



I. ? Cymodoce trnncata, Leach, 1818, c? . 



1818. Sphceroma pridenuxinmim, Leach. 5 • 



1868. Sphceroma prideanxiatium, Bate & Westwood, Hist. Brit. 



Sessile-eyed Crustacea, p. 415. $ . 

 1868. Ci/modocea trrmcata, Leach, Hist. Brit. Sessile-eved Crustacea, 



p. 426. d. 

 1873. Cymodocea truncctta, Hesse, Ann. Sci. Nat. (5) vol. xvii. p. 14, 



pi, i. 

 1900. E cosph<proma pride auxianum, Leach, Stebbing, Proc. Zool. 



Soc. London, p. 553. 



1905. Cymodoce tnmcata, Lead), IL J. Hansen, "Propagation, Classi- 

 iication, &c. of Sohseromidae," Quart. Journ. Micr. Sci, xlix. (1) 

 pp. 69-135, pi vii. 



1906. Cymodoce truncata, Norman & Scott, Crust. Devon and Cornwall, 

 p. 44, pi. iv. figs. 3-14. 



As all the specimens collected (about thirty) appear io be 

 immature, the species cannot be identified with certainty ; 

 none of them exceeded 5 mm. in length, and no ovigerous 

 females were observed. They agree pretty closely with the 

 form figured by Norman and Scott {oj). cif. p. 44, pi. iv. fig. 6) 

 and considered by them to be possibly young males. Re- 

 garding tjie specific identity of Cymodoce truncata and 

 ISphchroma prideauxianum, tlic references given above may 

 be consulted. 



IT. Idothea haltica (Pallas). Rio de Janeiro. 



A large number of specimens, very variable in colour, 

 marking, and size. Females \vith ova measure from 6 mtn. 

 to 10 mm. in length. This is a cosmopolitan species : for 

 localities and synonyms see " Isopods of N. America," Miss 

 H. Richardson (Bull. U.S. Nat. Mus. no. 54, 1905, p. 364). 



Amphipoda. 



III. Nototropis mim'koi (A. 0. Walker). Rio. 



1905. Parati/hcs minikoi, A. 0. W., Gardiner, Fauna Maid. Laccad. 

 vol. ii. p. 925, fig. 141. 



In quantity : previously recorded only from the lagoon of 

 the island Minikoi, one of the Maldives. 



