Fishes of the Western North Atlantic 217 



Maxillary dilated and rounded distally, not extending to joint of mandible. Dorsal 

 origin equidistant between base of caudal and tip of snout. Anal origin below last 

 rays of dorsal. Pectoral ending "a great distance" from the pelvic. Fin rays: dorsal 

 15, anal 18. Scales 41. Sides with a well-defined silvery band, this band nowhere 

 wider than eye. 



It is most unfortunate that the number of gill rakers was not stated. 



Range and Habitat. If the specimens examined have been correctly identified and 

 are the same species, the range extends from "Caxoeira,'" Province of Bahia," Brazil, 

 type locality, to Lago Maximus and Teffe, both far up the Amazon; and probably to 

 Rio Chapare and Lake Rogagua, Bolivia. This species, then, seems to live in fresh 

 water. That its distribution is as wide as indicated remains to be confirmed from the 

 study of more and better specimens. 



Synonyms and References: 



Engraulis brevirostris Giinther, Cat. Fish. Brit. Mus., 7, 1868: 392 (orig. descr.; type local. "Caxoeira, Province 



of Bahia," Brazil); Jordan and Seale, Bull. Mus. comp. Zool. Harv., 6^, 1926: 41 1 (refer it to Amflova, 



herein regarded incorrect). 

 Amplova brevirostris Myers, Proc. Calif. Acad. Sci., 2J, 1940: 440 (notes). 

 Anchoviella brevirostris Hildebrand, Bull. Bingham oceanogr. Coll., 8 (z), 1943: 119 (descr., range). 



Doubtful Reference: 



Anchoviella carrikeri Fowler, Proc. Acad. nat. nat. Sci. Philad., 92, 1940: 73, fig. 28 (orig. descr.; t}'pe local, 

 mouth of Rio Chapare, Cochabamba, Bolivia; t}'pe ANSP 68980; placed here with considerable doubt 

 because scales [31—33] and gill rakers on the lower limb [14 or 15] seem to be too few, and the pectoral 

 fin as shown in figure may be too long). 



Negative References: 



Anchoviella brevirostris Pearson, Indiana Univ. Stud., 64, 1925: 50 (Lake Rogagua, Bolivia; cf paratype of 



Stolephorus guianensis Eigenmann by Myers and found to be that species; see ref. under A.guianensis); 



Fowler, Proc. .\cad. nat. Sci. Philad., 92, 1940: 94 (listed, after Pearson). 



Anchoviella guianensis (Eigenmann) 191 2 

 Figure 47 



Study Material. A paratype, 50 mm TL, from the Demerara River, British 

 Guiana, CM 2449; and a rather poorly preserved specimen, 62 mm, from Itacoatiara, 

 Amazonas, Brazil, CNHM 15480. 



Distinctive Characters. This species differs from the specimens herein assigned to 

 A. brevirostris chiefly in the greater number of gill rakers. 



Description. Proportional dimensions in per cent of standard length, and counts, 

 based on Study Material, 50 and 62 mm, respectively. 



10. Dr. G. S. Myers has advised that "Caxoeira" and "Cachoeira" are alternative spellings in Brazilian Portu- 

 guese for "rapids," and that both are pronounced alike. Cachoeira is the generally accepted spelling today. 

 — Y. H. O. 



