2702 Bulletin 47, United States National Museum. 



Achirus lineattis, Cuviee, Rfegne Animal, Ed. 2. ii, 343,1829; Gill, Cat. Fishes East Coast 



N. Am., iu Rept. IT. S. Fisli Comm., 1871-72,794; Jordan & Gilbert, Proc. TT. 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 JSTaturgesch. 1858, 101. 

 Achirus molUs, Storer, S.ynopsia, 228, 184C; Storer, Hist. Fisli. Mass., 206, pi. 32, 1867; 



De Kay, New Tork F.auna: Fishes, 303, pi. 49, fig. 159, 1842. 

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

 Solea achirus, Gunthkr, Cat., iv, 476, 1862; not Pleuronectes achirus L. 

 Achirus achirus, Jordan, Free. V. S. Nat. Mus. 1885, 19 ; Jordan, Cat. Fish. N. A., 137, 1885. 

 A chirvs linealus, var. brnwni, Jordan & Gilbert, Proc. U. S. Nat. Mus. 1882, 305. 



3075. ACHIRUS PAAAMENSIS (Steindachner). 



Head 4 in body; depth If. D. .59; A. 4."); scales 63 to 6.5; highest dorsal 

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

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

 fringed; eyes small, the upper 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 bauds 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.) Pacitic coast of tropical 

 America, Panama. 



Soleapanamensis, Steindachner, Ichthyol. Beitrage, v, 10, taf. ii, 1876, Panama. 

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



1055. APIONICHTHYS, Kaup. 



Apioniehthys, Kaup, Archiv fur Naturgesch. 1858, 104 (dumerili). 

 Soleotalpa, GI^inther, 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, conlluent 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 continent with dorsal. Left ventral rudi- 

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

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

 latter genus the ventrals are both well developed, (a-, not; Ttioov,fa,t) 

 LX^v^, fish.) 



307«. APIONICHTHYS CNICOLOB (Giinther). 



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

 height being contained 2f 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 



