2372 Bulletin $j, United States National Museum. . 



dusky at base, its posterior half yellowish, with darker cross streaks ; ven- 

 tral similar ; a wedge-shaped, whitish band extending backward from eye 

 to opercle. West Indies; recorded from Key West and St. Thomas, 

 Here described from specimens from Key West, (affinis, related, to A. 

 monophtkalmus. ) 



Cremnobates afinit, STEINDACHNER, Ichth. Beitrage, v, 178, 1876, St. Thomas ; JORDAN, 

 Proc. IT. S. Nat. Mus. 1884, 142 ; JORDAN, Cat. Fishes K A., 121, 1885. 



2716. AUCHENOPTERUS MONOPHTHALMUS, Giinther. 



Head 3; depth 4. D. III-XXVI, 1; A. II, 18; scales 2-32-9; eye 5 in 

 head; maxillary If; pectoral 1; caudal 1J. Body compressed, deepest 

 at middle of pectorals; head moderately pointed, the upper profile 

 slightly and evenly convex; mouth large, maxillary reaching past eye; 

 jaws subequal; teeth villiform, in bands on jaws, vomer, and palatines; 

 interorbital space flat, as wide as eye ; a multifid dermal flap over poste- 

 rior edge of eye, and a smaller one on each side of nape ; head naked ; 

 body with rather large, regular scales; fins naked. Origin of dorsal over 

 edge of preopercle, the first 3 spines separated from rest of fin by a rather 

 deep notch, the membrane from third spine joining fourth spine at about 

 its middle ; spines of posterior part of dorsal the highest ; front of anal 

 midway between tip of snout and base of caudal, tips of last rays reach- 

 ing slightly beyond base of caudal and tips of last dorsal rays; pectorals 

 reaching front of anal; ventrals long and slender, inserted in front of base 

 of pectorals a distance equal to 1 eye ; caudal rounded. Color light gray- 

 ish red or brown, with about 6 cross bars of darker brown, running up on 

 dorsal; between the bars are scattered milky white irregular spots; a 

 black spot, ocellated with white, on front of dorsal, a similar spot near 

 posterior end, sometimes duplicated ; narrow cross bars on anal ; a dark 

 bar on base of caudal, and a dark blotch on base of pectoral. Here 

 described from specimens, a couple of inches in length, from La Paz, Lower 

 California. Gulf of California to Panama, abundant in rock pools, creep- 

 ing about among CoralUna; close to A. integrlpinnls, but the first dorsal 

 higher and more separate from rest of fin. (yUoVos, one; 606aAyud?, eye, 

 from the dorsal ocellus.) 



Aitchenopterus monophthalmus, GUNTHER, Cat. Fish., in, 275, 1861, Panama ; JORDAN, Proc. 



CaL Ac. Sci. 1895, 501. 

 Cremnobates rnonophthalmus, GUNTHER, Proc. Zool. Soc. Lond. 1861, 374 ; GUNTHER, Fish. 



Centr. Amer., 442, pi. 69. fig. 1, 1869. 



2717. AUCHENOPTERUS INTEGRIPINNIS (Rosa Smith). 



Head 3; depth 4$; eye 4 in head. D. III-XXVII, 1; A. II, 20; scales 

 2-36-9; pectoral !; caudal 1. Head stout, broad, conical; mouth little 

 oblique, maxillary reaching posterior margin of eye; eyes large; nasal, 

 supraocular and nuchal regions with fringed cirri, those at the nape flap- 

 like. First and second dorsal spines low, a little higher than the third, 

 which, in turn, is higher than the fourth and separated from it by an 

 interspace, the membrane between the third and fourth spines not deeply 



