Joi'dan ajid Evcrmanyi. — Fishes of North America. 2205 



808. CHRIOLEPIS, Gilbert. 

 Chriolepig, Gilbert, Proc. TJ. S. Nat. Mus. 1891, 557 (minutillus). 



This genua differs from Gymneleotria, Bleeker, in the total absence of 

 scales, and the absence of enlarged canines in the front of the mandible. 

 Head and body compressed, the former as deep as wide. Ventrals st-pa- 

 ratc, near together, the inner rays longest, each with 1 spine and 5 soft 

 rays. Teeth in a rather wide band in upper jaw, the outer series some- 

 what enlarged. Teeth in mandible in a single series, similar to outer row 

 in upper jaw, none of them canine-like. Gill slits narrow ; no dermal flaps 

 on inner edge of shoulder girdle. Size small, (xpsicx, want; AcTf/g, scale.) 



2528. CHRIOLEPIS MINUTILLUS, Gilbert. 



Head 3i; depth 4^ in length. D. VII-12; A. 11. Mouth oblique, the 

 maxillary reaching to below middle of orbit, 2i in head; eyes high up, 

 but with lateral range, separated by a narrow interorbital space less than 

 diameter of pupil; diameter of orbit nearly twice length of snout, 3^ in 

 head; dorsal spines high and slender, but not filamentous, the longest^ 

 length of head; soft dorsal rays higher, nearly ^ length of head; the anal 

 lower; caudal short, broadly rounded, the depth of pe<luncle i length of 

 head; length of pectoral equaling that of head without snout. Color 

 tmiform light brown on head and body, above and below; fins dusky, the 

 anal blackish. A §ingle specimen, 1 inch long, from Albatross Station 

 2825, oft' the east coast of Lower California, {minutillus, very small.) 



Chriolepis minutillus, Gilbekt, Proc. TJ. S. Nat. Mus. 1891, 558, Albatross Station 2825, 

 Gulf of California, in 79 fathoms. 



809. SICYDIUM, Cuvier & Valenciennes. 



Sieydium, Cuvier & Valenciennes, Hist. Nat. Poiss., xii, 168, 1837 (plumieri). 



Body subcylindrical, covered with rather small ctenoid scales; head 

 oblong and broad, with cleft of month nearly horizontal; upper jaw 

 prominent; snout obtusely rounded; lips very thick, the lower with a 

 series of numerous slender horizontal teeth, of which sometimes only the 

 extremities are visible; upper jaw with a single uniform series of numer- 

 ous movable small teeth attached by ligament to edge of maxillary; 

 behind this outer visible series lie numerous other parallel series of young 

 teeth hidden in the gum, which succeed the former as they become worn 

 out or broken; lower jaw with a series of widely set conical teeth; teeth 

 all simple, slender, the distal half bent inward nearly at a right angle ; eyes 

 of moderate size ; 2 dorsal fins, the anterior with 6 (5 or 7) flexible spines ; 

 caudal quite free; ventrals united into a short cup-shaped disk; gill 

 openings of moderate width; 4 branchiostegals. Species few in the 

 streams of the West Indies. (diHvdiov, diminutive of 6iHva, a gourd, or 

 gourd-shaped cupping glass, from the ventral disk.) 



a. Body covered with small scales. 



6. Scales very small, about, 84. PLUMIERL 2529. 



6&. Scales moderate, about 68. Antillarvm, 2330. 



aa. Body nearly naked. VINCEnte, 2531. 



