2702 Bulletin 4.7, United States National Museum. 



Achirus Uneatus, CUVIER, Regne Animal, Ed. 2, u, 343. 1829; GILL, Cat. Fishes East Coast 



N. Am., in Kept. U. S. Fish Comm., 1871-72,794; JORDAN & GILBERT, Proc. IT. S. Nat. 



Mas. 1878, 368; GOODE, 1. c., 1879, 110; GOODE & BEAN, 1. c., 1879, 123; BEAN, 1. c., 1880, 



77; JORDAN & GILBERT, 1. c , 1882, 618; BEAN, 1. c., 1883, 365. 

 Grammichthys lincatun, KAUP, Archiv fur Naturgesch. 1858, 101. 

 Achirus inollis, STORER, Synopsis, 228, 1846; STORER, Hist, Fish. Mass., 206, pi. 32, 1867; 



DE KAY, New York Fauna : Fishes, 303, pi. 49, fig. 159, 1842. 

 Achirus achirus mollis, JORDAN, Cat. Fish. N. A., 137, 1885. 

 Rolea achirus, GUNTHER, Cat., iv, 476, 1862; not Pleuronectes achirus L. 

 Achirus achirus, JORDAN, Proc. U. S. Nat. Mus. 1885, 19 ; JORDAN, Cat. Fish. N. A., 137, 1885. 

 Achirus Uneatus, var. browni, JORDAN & GILBERT, Proc. TJ. S. Nat. Mus. 1882, 305. 



3076. ACHIRUS PANAMENS1S (Steindachner). 



Head 4 in body ; depth If. D. 59 ; A. 45 ; scales 63 to 65 ; highest dorsal 

 and anal spines 2 in head; caudal 1. Body broad, elliptical; angle of 

 mouth below middle of lower eye ; edge of lower lip, on the eyed side, 

 fringed; eyes small, the npper in advance of the lower; interorbital 

 scaled, scarcely as wide as diameter of eye; scales ctenoid; pectorals 

 wholly wanting ; origin of dorsal on end of snout ; highest rays of anal 

 and dorsal behind their middle; ventral rays short; middle rays of caudal 

 the longest, fin sharply rounded behind. Color brown; about 12 dark 

 cross bands on head and body ; between these faint, paler cross bands, 

 which form spots on dorsal and anal ; caudal similarly spotted, the spots 

 forming obscure cross bands. (Steindachner.) Pacific coast of tropical 

 America, Panama. 



Soleapanamensis, STEINDACHNER, Ichthyol. Beitrage, V, 10, taf. n, 1876, Panama. 

 Achirus panamensis, JORDAN & Goss, Review Flounders and Soles, 316, 1889. 



1055. APIONICHTHYS, Kaup. 



Apionichthys, KAUP, Archiv fur Naturgesch. 1858, 104 (dumerili). 

 Soleotalpa, GiJNTHiZR, Cat., iv, 489, 1862 (unicolor). 



Gill openings very small, separate, each reduced to a slight slit below 

 angle of opercle; right ventral beginning at the chin, confluent with the 

 anal; pectoral fins wanting or very small; lateral line present, straight; 

 eyes small ; snout dilated, the dorsal beginning upon it. Scales present, 

 ctenoid ; caudal fin somewhat confluent with dorsal. Left ventral rudi- 

 mentary, with 2 rays. West Indies and Brazil. This genus is closely 

 related to Achiropsis, Steindachner, of the rivers of Brazil, but in the 

 latter genus the ventrals are both well developed. (-, not; iti&r, fat; 

 ft6t>, fish.) 



3076. APIONICHTHYS CNICOLOR (Giinther). 



D. 76; A. 57; V. right 5, left 2; scales 92. Body very flat and thin, its 

 height being contained 2 times in the total length (without caudal), the 

 length of the head 4 times. The upper part of the snout is dilated, bent 

 downward like an aquiline nose, the end covering the symphysis of the 

 mandibles ; the cleft of the mouth is curved, the lower eye being imme- 

 diately above its angle. The eyes are mere points, rather distant from 



