Jordan and Eve rmann.— Fishes of North America. 



2699 



«oJ.ama.a«an., STEINDACHNER, Ichth. Notizen, ix, 23, 1869, Mazatlan; Jobpan S. Gil- 



BERT, Bull. TJ. S- Fish Comm. 1882, 108. 

 ,SW«n>i7osa Pkters, Berliner Monatsber. 1869, 709, Mazatlan. 

 lS:L«««n..; JOKOAN, rrocU. S. Nat. Mas. 1885, f 1; Jokuax & Goss, Kev.ew 



Flounders and Soles, 313, 1889 ; Jordan, Proc. Gal. Ac. Sci. 189o, a05. 



3070. ACHIRUS FONSEOENSIS (Giinther). 



HeadSi; depth 1|. D.58; A.44; P.2; scales about 85. No trace of a 

 pectoral on the left side, that on the right not much longer than the eye; 

 right ventral fin composed of 5 rays, which are continuous with the 

 anal. Scales on the nape twice or thrice aa large as those on the body 

 The upper part of the snout slightly overlaps the lower jaw. The left 

 anterior part of the head with numerous tentacles; the right lower hp 

 with very distinct slender fringes; nostril on the right side in a wide and 

 short tube The width of the interorbital space is less than the diameter 

 c,f th^ eye; the upper eye is in advance of the lower. The rays ot the 

 vertical fins are branched; the longest dorsal rays are % ot the length ot 

 the head. Caudal rounded, as long as the head. Brownish olive, with 6 

 pairs of deep brown vertical lines extending on the dorsal and anal fins. 

 Pacific Coast of Tropical America. (Giinther.) Described from 1 speci- 

 men 4i inches long, from Gulf of Fonseca; 2 others since taken by us m 

 Rio Presidio, near Mazatlan. (Name from Fonseca, the type locality.) 

 mea fonsecensis, GOnthek, Cat., iv, 475, 1862. Gulf of Fonseca. <Co]l. Sir John Ilichard- 



AcZ:s fon.ecen^s, Jordan & Go«s. Kevie.v Flounders and Soles, 314,1889, Jordan, 

 Proc. Gal. Ac. Sci. 1895, 505. 



3071. ACHIRUS FISCHERI (Steindachnei). 

 (Peck Oja.) 

 Head 3A in body ; depth 1? ; caudal 3i. D. 61 ; A. 44 ; P. right. 1 ; V. 5 ; 

 Bcales 60 to 62. Pectoral wanting on left side, rudimentary on ngiit, of a 

 single ray scarcely longer than eye ; right ventral connected with the anal. 

 Scales on neck and lower portion of head U to 2 times as large as those on 

 body; right side of lower lip fringed; upper jaw not projecting forward 

 over lower jaw; left side of head with dermal flaps only around corner 

 of mouth and on lower jaw. Eyes small, the upper a little further for- 

 ward than the other, and 2 in snout ; breadth of forehead equaling diame- 

 ter of eye. Dorsal rays increasing gradually in length to the forty-eighth, 

 which is about f length of head. Scales strongly ctenoid, the teeth con- 

 siderably largest at the middle; rays of all the fins, except of pectorals, 

 scaled to their tips, the membranes less fully scaled; only the anterior 

 third of the caudal membranes scaled, and between the last dorsal and 

 anal rays the scales extend slightly upon the fins. A few black thread- 

 like appendages on right side of body between scales. Color ot right 

 side dark gray; 2 or 3 blackish cross lines on head, about 10 on body, 

 between them numberless spots of similar color ; spots on fins, especialy 

 those on caudal, a little larger; a few large dark spots on body, irregular 



