402 FISHERIES OF THE UNITED STATES. [16] 



fishes at Pensacola, and lias given us the material wherewith we are 

 enabled to extend the range of many species. Some of the most inter- 

 esting of the recent additions are the following: Hippocampus zosterw, 

 H. stylifer, Siphostoma zatropis, Bwostoma brachiale, Etropus crossotus, 

 Genypterus omostigma, Cremnobates marmoratus, various species of Blen- 

 iiies, Opisthognathus lonchurus, 0. scaphiurus, Porichthys plectrodon* 

 loglossus calliums, Chromis enchrysurus, Gerres olisthostoma, Stenotomns 

 eaprinus, Tylosurus gladius, Cyprinodon mydrus, Fundulus ocellaris, F. 

 wenieus, Conger caudicula, Spliagebranchus teres, LetJiarchus velifer, and 

 Myrophis lumbricus. 



A comparison of the lists will show that the littoral fishes of the Gulf 

 of Mexico, or at least that portion of it recently investigated, are 

 largely the same as those which inhabit the east coast of the Southern 

 United States. The large admixture of West Indian forms will also be 

 apparent. 



THE GENERA OF FRESH- WATER FISHES. 



The series of fresh-water fishes embraces 173 species, representing 

 nearly all the genera and subgenera at present recognized by the ma- 

 jority of ichthyologists in the United States. The forms not represented 

 by specimens in alcohol are the following: 



Etheostomatid^e. 

 loa. 



Hypohomus (subgenus of Hadropterus). 

 Alvarius (subgenus of Poecilichthys). 



Amblyopsid^e. 



Ghologaster. 

 Esoctd^. 



Mascalongus (subgenus of Esox). A cast and a photograph are 

 exhibited. 



<0 YPRINOD ONTID^ . 



Fcecilia. 



Adinia (subgenus of Fundulus). Exhibited in the Gulf of Mexico 

 series. 



Coreoonidje. 



Allosomus (subgenus of Coregonus). 

 Olupeid^). 



Pomolobus (subgenus of Glupea). Exhibited in the Gulf of Mexico 

 series. 



Catostomid^e. 



Lipomyzon (subgenus of Catostomus). 



Placopharynx. 



Quassilabia. 



