2 1 6 Memoir Sears Foundation for Marine Research 



the figure looks somewhat like perfasciata; it is the same one used b}' Nichols [1929: 204] and may have 

 been based on a West Indian specimen). 



Negative References: 



Stolephorus perfasciatus Swain, Bull. U. S. Fish Comm. (1882), 2, 1883: 55 (descr. of specimen from Woods 

 Hole, Massachusetts, which was A. eurystole); Jordan and Gilbert, Bull. U. S. nat. Mus., 16, 1883 : 272 

 (descr. of specimen from Woods Hole, Mass., which was A. eurysto/e; West Indies includ. in range, 

 where eurysto/e does not occur); Bean, T. H., Bull. N. Y. St. Mus., 60, Zool. 9, 1903: 217 (descr. of 

 specimens from Noank, Connecticut, and Gravesend Bay, Long Island, N. Y.; specimens, in part at least, 

 exam, by me and found to be A. eurysto/e). 



Anchovtella brevirostris (Giinther) 1868 



Study Material. Two small soft specimens, 26 and 24 mm SL, from Lago Max- 

 imus, far up the Amazon Basin, Brazil, and six specimens that have been more or 

 less dry, 17-22 mm SL, from Teffe, also far up the Amazon Basin, which may be 

 of this species, all in MCZ. Another, 40 mm TL, from Lake Rogagua, Bolivia, also 

 may be of this species (part of CAS 9398). Because of the poor condition and small 

 size of the specimens and the inadequacy of the original description, identification is 

 uncertain. 



Description. Proportional dimensions in per cent of standard length, based on 

 two of the larger and better specimens, 26 and 24 mm SL, respectively. 



Body: depth 15.3, 16.1. 

 Head: length 20.4, 24.4. 

 Snout: length 3.8, 4.15. 

 Eye: diameter 7.7, 7.3. 

 Postorbital: distance 12.7, 12.5. 

 Maxillary: length 15.4, 12.5. 

 Mandible: length 15.4, 13.7. 



Anal fin: length of base 19.2, 17.5. 

 Pectoral fin: length }, 11.2. 



Gill rakers: 13 or 14+19 (4 specimens). 

 Fin rays: dorsal 12 or 13; anal 16—19; 

 pectoral 11 or 12 (4 specimens). 



Body slender, its depth 6.2, 6.5 in SL. Head 4.1, 4.9. Snout projecting about 

 half of its length beyond mandible, 5.5, 6.3 in head. Eye 3.0, 3.2. Postorbital part 

 of head 1.75, 1.9 in head. Maxillary nearly straight, rounded distally, extending 

 about an eye's diameter beyond posterior rim of orbit but not quite to joint of man- 

 dible, 1.5, 1.75 in head. Mandible 1.57, 1.6. 



Dorsal origin about equidistant between base of caudal and tip of snout. Anal 

 origin under base of last 2 or 3 rays of dorsal; anal base 5.2, 5.7 in SL. Pectoral 

 failing to reach pelvic by an eye's diameter, 2.0 in head. 



Color. Very old specimens, in alcohol, faded, except for the silvery lateral band, 

 which is somewhat narrower than the eye. 



Digest of Giinther s Description, type 8y mm TL. Head 4.5, its depth S-32)- Snout 

 much shorter than eye, projecting only slightly beyond mandible. Eye t,.^ in head. 



