ANNOTATED LIST OF THE SPECIES 407 
Pterophyllum scalare Eigenmann and Eigenmann, 1891, Proc. U. 8. Nat. Mus., XIV, 71; 
Pellegrin, 1902, Bull. Mus. Hist. Nat., VIII, 183; 
Pellegrin, 1903 (1904), Mém. Soc. Zool. France, XVI, 251, ‘‘Haut-Perou,” 8 specimens, 2 
from ‘“‘Haut-Amazone”’; 
Regan, 1905, Ann. Mag. Nat. Hist., (7), XVI, 441; 
EKigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 479; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 521; 
Ahl, 1928, Zool. Anz., LX-XVI, 319. 
Range that of the genus 
15988, 6, 60-99 mm. to end of middle caudal rays, Iquitos, Morris, 1922. 
17780, 3, 65-78 mm., Yarinacocha, Allen, August, 1920. 
Order HETEROSOMATA 
Family XXIII: Soleidae 
Genus 215: ACHIRUS Lacépéde 
Achirus Lacépede, 1803, Hist. Nat. Poiss., IV, 658; 
Cuvier, 1829, Régne Anim., ed. u1, II, 343; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, ITI, 483; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 526; 
Myers, 1929, Copeia, no. 171, 36, 37; 
Hubbs, 1936, Carnegie Inst. Publ., 457, 284. 
Trinectes Rafinesque, 1832, Atlantic Jour., I, scabra. 
Grammichthys, Monochirus Kaup, 1858, Arch. Naturg., XXIV, 94. 
Baiostoma Bean, 1882, Proc. U. 8. Nat. Mus., V, 413. 
Barostoma Jordan and Gilbert, 1883, Bull. U.S. Nat. Mus., XVI, 965. 
Anathyridium Chabanaud, 1928, Bull. Inst. Océanogr., no. 523, 25. 
Type: Pleuronectes achirus Linnaeus 
Jamaica to Buenos Aires and Amazons 
Jaws equal; ventrals nearly equally developed and not continuous with the 
anal fin, their origin remote from chin; scales ctenoid; a margin about the blind side 
of the head with profuse fringes; lateral line straight. 
530. ACHIRUS ACHIRUS (Linnaeus) 
“Passer lineis transversis notatus” Sloane, 1725, Jamaica, II, 277, pl. cexlvi, fig. 2. 
Pleuronectes lineatus Linnaeus, 1758, Syst. Nat., ed. x, I, 268. 
Achirus lineatus Valenciennes, 1847, in d’Orb. Voy. Amér. Merid., V, pl. xvi, fig. 2; 
BHigenmann and EKigenmann, 1891, Proce. U.S. Nat. Mus., XIV, 73; 
Jordan and Evermann, 1898, Bull. U.S. Nat. Mus., no. 47, ITI, 2697; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 483; 
Kigenmann, 1912, Mem. Carnegie Mus., V, 526; 
Fowler, 1914, Proce. Acad. Nat. Sci. Phila., LX. VI, 283; 
Hubbs, 1936, Carnegie Inst. Publ., no. 457, 284. 
Baeostoma (Anathyridium) maculipinnis Chabanaud, 1935, Bull. Inst. Océanogr., no. 523, 25. 
Achirus achirus Chabanaud, 1935, Bull. Inst. Océanogr., no. 661, 1-24; 
Fowler, 1939 (1940), Proc. Acad. Nat. Sci. Phila., XCI, 278, two, 150 and 174 mm., 
Contamana. 
