2776 Bulletin 4.7, United States National Museum. 



origin of anal; pectoral spine very strong, its anterior margin with seme 

 toward the tip, becoming small tubercles toward base ; soft rays but little 

 longer than spine, which reaches slightly beyond | distance from origin to 

 base of ventrals. Color dark blue, with silvery reflections on sides; belly 

 pale; mental barbels dusky; maxillary barbels light below and black 

 above; paired fins darkest on inner side; other fins almost uniformly 

 dusky. One specimen, 19 inches long, taken by the Hopkins Expedition 

 at Mazatlan; probably not distinct from G. guatemalensis. 



Galeichthys azureus, JORDAN & WILLIAMS, Kept. Fishes Sinaloa, in Proc. Cal. Ac. Sci. 

 1895, 398, pi. 27, Mazatlan. (Type, No. 1575, L. S. Jr. Univ. Mus. Coll. HopMna 

 Exped. to Sinaloa.) 



189. GALEICHTHTS UERULESCEXS (Giinther). 



D. I, 7; A. 17; P. I, 10. The height of the body is contained about 5 

 times in the total length (without caudal), the length of the head 3| or 3 

 times; head much broader than high, its greatest width being f of its 

 length. Eyes rather small, their diameter being i of the extent of the 

 snout, f of their distance from the gill opening, and i of the width of the 

 interorbital space. The teeth on the palate form a slightly curved band, 

 composed of 2 vomerine patches which are much broader than long, and 

 of a pair of palatine patches which are subcontinuous with, scarcely 

 broader and longer than, those of the vomer. The barbels of the maxil- 

 laries extend to the middle, the outer ones of the mandible to the base of 

 the pectoral. Crown of the head granular; occipital process broader 

 than long, subtriangular, subtruncated behind, and slightly raised along 

 the median line; the basal bone of the dorsal spine is subtriangular, 

 small. Dorsal spine of moderate strength, more than as long as the 

 head, granulated in front and slightly serrated behind ; the first soft ray 

 is as high as the body; adipose fin shorter than the dorsal; caudal deeply 

 forked, with the upper lobe the longer, its length being nearly equal to 

 that of the head; pectoral spine serrated along its inner edge and on 

 the extremity of its outer edge; it is as long as the head v ithout snout. 

 Ventral fin shorter than pectoral. Sides steel-blue iridescent, blackish 

 toward the back, and silvery below ; vertical fins black ; inner side of the 

 paired fins blackish. Guatemala, a-b. Fine specimens, 12 inches long. 

 Huamuchal. From the collection of Messrs. Godman and Salvin. (Giin- 

 ther, Cat., v, 149.) 



The following note on the types of this species is given by Jordan (Proc. 

 Ac. Nat. Sci. Phila. 1883, 282) : "Head more depressed than in A. assimiUs. 

 Fontanel very short, ending abruptly behind and not produced in a groove 

 behind the smooth area of the top of the head, the boundary of the smooth 

 area being rather abruptly convex. Occipital process broader than long, 

 its edges nearly straight. Bands of palatine teeth small, not produced 

 backward on the inner margin. Paired fins black at base above." No 

 recent collector has found this species. 



