510 ADDENDA ET CORRIGENDA. 



Page 251. Ditrema argenteum. 



b-e. Fine specimens (males and pregnant females). Esquimault 

 Harbour. Collected by J. K. Lord, Esq. — These specimens are 

 smaller (8-10 inches) than specimen a. from San Francisco 

 (11 inches), and the maxillary does not extend quite so far 

 backwards as in the latter. 



Page 267. Chromis niloticus. 



l-m. Fine specimens. Port Natal. From Mr. Th, Ayres's Collection. 



These specimens do not belong to Ch. mossambicus or Ch. sparr- 

 numni, as we might have been tempted to believe, but they agree in 

 every respect with Ch. niloticus. They are called '* Black-fish " in 

 the colony. 



Page 269. Chromis tristrami. 



Specimen c, from Ashantee, ought to be referred to Chromis tjxiine- 

 msis (p. 271). 



Page 271. Chromis guineensis. 

 rt. Adult. Ashantee.— D. J|. A. |. L. transv. 3/11. 



Note. 



We have given the name of Atypus to an Australian fish (vol. ii. 

 p. 64) ; as this name is preoccupied, we propose that of Atiipichtliys. 



