14 BULLETIN OF THE 



Zygonectes chrysotus Agassiz, MS. 1861. 



Syx. Fundulus chrysotus Agassiz; IIolhkook, 1853 (MS.?). 



Cyprinodon variegatus LaCepede, Hist. Nat. Poiss. V. p. 487. 1803. 

 Pcecilia latipiuua Agassiz, MS. 1858. 



Syx. Moltinesia latipinna LkSueur, (male) ; Patilia mulldineata Le- 

 Sceur, (female,) Journ. Philad. Acad. Nat. Sei. II. pp. 3, 4, 1821. 

 Gambusia Holbrookii Girard, Proe. Philad. Acad. Nat. Sci. NI. p. 61. 



1859. 



Sv.v. Hfterandvia Hoibrookii Agassiz, 185.3. 



Girardinus formosus OmArm, Proc. Philad. Ac-ad. Nat. Sci. XI. p. 62. 1859. 

 Syx. IFeteraiidria formosa Agassiz, 1853. 



Tlu-se last three species are viviparous. G. formosus is the smallest 

 known Vertebrate. 



From the Pacific Coast of North America. 



Triads semifasciata Girard, Proc. Philad. Acad. Nat. Sci. VII. p. 196. '.854. 

 Syx. Muslelus Fdis Avkks, 1854. 



Triads Eenlei Putnam. 



Syx. TsQjitofjiodon sp. Gii.l, 1862; lildnotriacis Ilenlei Gn.i-. Ti-oc. 

 Philad. Acad. Nat. Sci. XIV. p. 486, 1862. 



The characters given by Mr. <iill to the genus IUdnofriacis are. in our 

 estimation, only of specific value. Mr. Gill's specimen being immature 

 probably accounts for the apparent difference "between the teeth of this 

 species and those of '/'. aemifasciata, for in our numerous examinations we 

 have found teeth on both jaws having two distinct notches on each side of 

 the central point, although these fivc-lobcd teeth are more numerous in the 

 lower than in the upper jaw. T. Ho.nlei differs principally from '/'. semi- 

 fimciata in its longer, flattened, and pointed snout; in its scales not being 

 so strongly tri-lobed, and in the color, which is of a uniform brownish gray 

 e, becoming lighter below. In young individuals the color is redder 

 above and white below. In all specimens the two dorsals and the caudal 

 are tipped with black. T. Henlei is more slender than T. semifasciata, hut 

 ittaiirs about the same length. 



Acanthias Suckleyi Girard, Proc. Philad. Acad. Nat. Sri. VII. p. 196. 1854. 



Porichthys notatus Girard, Proc. Philad. Acad. Nat. Sci. VII. p. 141. i w "4 



Leptocottus armatus Girard, Proc. Philad. Arm!. Nat Sci. VII. p. 131. 



1*54. 



