1886.1 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 501 



Gobius martinicus Cuvier & Valenciennes, Hist. Nat. Poiss. xii, 105, 1837 



(Martinique); Castelnau, "Anim. nouv ou rares de I'Ameri. du Sud, 



Poiss. 26." 

 Chonophorii8 hucculentiia Poey, Memorias de Cuba, ii, 275, 1861 (Cuba). 

 Ehinogoiius buccidentus Poey, Syn. Pise. Cub. 394, 1868 (Cuba) ; Poey, Enu- 



meratio Pise. Cub., 125, 1876 (Cuba). 

 Bhinogobias contractus Poey, Memorias de Cuba, ii, 424, 1861 (Cuba) ; Poey, 



"Annals Lye. Nat. Hist. New York, ix, 322;" Poey, Enumeratio Pise. 



Cub. 125, 1875, Poey, La Fauna Puerto-Eiquefia, 338, 1881 (Porto Rico). 

 Gobius dolichocephalus Cope, Trans. Amer. Phil. Soc. Philad. 1869, 403 (near 



Orizaba, Vera Cruz). 



Habitat — Fresh waters of the West Indies and of both coasts of 

 Mexico. 



The specimens of this species before us are from the Rio Almen- 

 dares, near Havana, and from near Cape San Lucas. We are unable 

 to detect any specific differences between these examples. The former 

 corresponds to the Bhinogobius bucculentus. There are considerable 

 (sexual) differences in the size of the mouth corresponding to the dis- 

 tinctions between banana and martinicus, and to those between buccu- 

 lentus and contractus. Gobius dolichocephalus Cope has the scales slightly 

 smaller than the average in 6. banana, but in this respect the species is 

 subject to considerable variation. 



It seems to us that there is little room for doubt that this is the 

 species to which Lichtenstein, in his commentary on Marcgrave, has 

 given the name Gobius taiasica. We have not seen the original paper 

 of Lichtenstein. According to Cuvier & Valenciennes, this Gobius 

 taiasica is "a goby of Brazil, 6 or 7 inches in length, with rounded tail, 

 of a dirty gray color, covered with small brown specks ; of which the 

 head forms one-fifth the total length. The fin rays are D. yi-12, 

 A. 12. C. 15. P. IG. Y. 1-5." 



Among the known species this can only be Chonophorus banana^ 

 Gobius soporator, or Gobius oceanicus, as no other West Indian species 

 reaches a length of 3 inches. Of these, only the first corresponds at 

 all to the above account. We therefore adopt the name of Chonophorus 

 taiasica. The "Amore G-uacu" of Marcgrave seems to be this species. 



38. Chonophorus mezicanus. 



Gobius mexicanus Giinther, Cat. Fish. Brit. Mus. , iii, 61, 1861 (Mexico). 



Habitat. — Fresh waters of the eastern slope of Mexico. 

 This species is known to us only from Dr. Giinther's description. It 

 is evidently a near ally of Chonophorus taiasica. 



14. LEPIDOGOBIUS. 



Lepidogobius Gill, Annals Lye. Nat. Hist. N. Y. 1859, 14 (lepidus). 

 Eucycl<5gobius Gill, Proc. Acad. Nat. Sci. Phila. 1862, 279 (^newherrii). 

 Cyclogobius '.' Steindachner." 



Type Gobius gracilis Girard = Gobius lepidus Girard. 



