Jordan and Everma7in. — Fishes of North America. 2241 



found in the mud on a shallow bottom in the Astillero at Mazatlan. 

 (Ethcostoma, a darter, which this species strongly resembles.) 



Aboma ethcostoma, Jordan & Stakes, Proc. Cal. Ac. Sci. 1895, 498, pi. 50, Mazatlan. (Coll. 

 Hopkins Expedition to Mazatlan.) 



2572. ABOMA LUCRETI.E (Eigenmann >t. Eigeiimann). 



Head 34 in length; depth 5^. D. VII-10; A. 12; scales 28-8. Body 

 slightly compressed posteriorly; head little wider than high; eye placed 

 high, its diameter equaling length of snout, 4i in head; profile little 

 decurved; mouth large, oblique; maxillary extending below posterior 

 margin of orbit, 2 in head; intermaxillary anteriorly on a level with cen- 

 ter of pupil; teeth all recurved, large, those of upper jaw in a narrow 

 band; teeth of outer and inner series enlarged, those of lower jaw similar, 

 largest in front. No dermal flaps on shoulder girdle. Scales large, very 

 weakly ctenoid, becoming cycloid and very much crowded above and 

 below pectoral; head, breast, and anterior part of nape naked. As seen 

 through a lens, these regions seem to be covered with minute embedded 

 scales; this effect is, no doubt, due to light reticulations on a darker 

 ground. Dorsal spines slender, not filamentous; caudal pointed, 3 in 

 length of body ; ventrals 1^ in head ; pectorals longer than head. Color 

 light brownish, with 4 oblique dark cross bars as wide as interspaces ; 4 

 narrower transverse l)ars on nape and back; a large dusky spot^t base of 

 caudal; upper half of base of pectoral black; a black spot on opercle, 

 margined below aud behind with silvery ; fins dusky. Pearl Island, Gulf 

 of Panama; only 1 specimen known. (Named for Mrs. Lucretia M. Smith 

 of San Diego, mother of Mrs. Eigenmann.) 



2573. ABOMA CHIQUITA (Jenkins &Evermann). 



Head3ito3i; depth 4^ to 4|. D.VII-11; A. 10; eye 4f in head in adult, 

 4 in young; scales 37-17. Body rather stout, compressed; head short, 

 somewhat depressed, widened behind orbits; snout short and narrowly 

 rounded ; profile in front of eye very steep, less so to occiput, and nearly 

 straight from there to caudal fin ; eyes moderate, well up ; interorbital 

 space very narrow, less than eye ; greatest width of head equaling greatest 

 depth of body. Top of head, opercles, and space in front of dorsal naked, 

 rest of body covered with small, strongly ctenoid scales, which increase 

 in size upon the caudal peduncle. Spinous dorsal with its first spine fila- 

 mentous in adult, much longer than head and reaching middle of soft 

 dorsal, this filament wanting in young; distance from snout to origin of 

 spinous dorsal a little more than ^ distance to base of caudal ; second dor- 

 sal but slightly separated from spinous, its origin about midway of total 

 length of fish; anal of about the same shape and size as soft dorsal, but 

 beginning a little behind it; pectorals tapering, about equaling head in 

 length, their tips not reaching origin of anal, but to origin of soft dorsal; 

 ventrals united, free from belly, inserted behind pectorals, but their tips 

 not reaching tips of pectorals. Teeth apparently in a single series, small 

 and weak. Ground color pale yellowish, thickly mottled with fine punc- 



