NATURAL SCIENCES OP PHILADELPHIA. 5 



caudal fia ; the band is itself bordered with blackish below, which is uracil 

 more distinct behind the ventrals. The sides of the head as well as the infe- 

 rior surface of the body are also of a deep yellow color, the line bounding the 

 yellow of the head passing under the eyes, and is continuous at the axilla of 

 the pectorals with the lateral band. The dorsal, caudal and most of the pec- 

 torals, are of a lighter color than the back; the interior rays of the latter are 

 yellowish. 



A single specimen of this new species of Anableps was obtained by Captain 

 J. M. Dow. 



It is interesting as being the first representative of the genus that has been 

 discovered on the Pacific coast. We dedicate the species to its discoverer, who 

 has added much to our knowledge of the Fauna of the western coast of Central 

 America, aud who has forwarded to the Smithsonian Institution many new 

 species of Fishes, Crustaceans, and other animals, among which is the type of 

 the singular new Portumnoid genus Euphylax of Stimpson. 



The following synopsis of the species of the genus will exhibit the compara- 

 tive differences between them. 



.. Squamae in serie longitudinali cerciter 70. Color superne olivaceo-fuscus ; 

 fascia lateral! et corpore inferne flavis. 



Anableps Dowei Gill. 

 Synonymy. 

 Anableps Dowei Gill, Proceedings Acad. Nat. Sciences, supra 1860. 



/?. Squamaa in serie longitudinale 50 55; color superne clivaceo-virescens ; la- 

 teribus lineis longitudinalibus tribus vel quatuor ornatis. 



Anableps tetrophthalmus Bloch. 

 Synonymy . 

 Anableps lineis quatuor longitudinalibus ad utrumque latus ; processu tubulato 

 ad pinnam &<a'\ Artedi in Seba's Thesaurus rerum naturalium, vol. iii. 

 pi. xxxiv. fig. 7, 1758. 

 " Artedi, Genera Piscium, p. 25, genus xx. 

 " " Species Piscium, p. 46. 



Anableps Gronovius, Zoophylacium, p. 117, No. 350, pi. i. figs. 1, 2, 3. 



" Gronovius Museum Icbthyologicum, vol. i. p. 12, No. 32. 

 Cobitis anableps, Linnceus, Systema Naturae ed. x. 



Linnceus, Systema Naturae, ed. xii., gen. 173, No. 1. 

 Anableps tetrophthalmus Bloch. Naturgeschichte der ausliindischen Fische. 



Bloch. Systema Ichthyologies, Schneid. ed., 

 " Lacepede, Hist. Nat. des Poissons, vol. v. 1803. 



Cuv. et Valenciennes, Hist. Nat. des Poissons, vol. xviii. 

 p. 252. 



The preceding is only a portion of the synonymy of the species. On account 

 of the remarkable structure of its eyes, it has been referred to in numerous 

 works on Natural History and Anatomy. Such allusions have not been 

 deemed of sufficient importance to refer to. 



y. Squamae in serie longitudinali cerciter 85-00 ordinatae. Color superne oli- 

 vaceo-virescens, inferne albescens. 



Anableps microlepis Mull. 



Synonymy. 

 Anableps microlepis Miiller and Troschel, Monatsberichte der Acad. 1844, p. 36. 



1861.] 



a 

 it 



