2830 Bulletm ^7, United States National Museum. 



Wliilo a few of tho chysotus form are found in tlie Tampa collection, and 

 a few of the chigiilatus form with the Welaka lot, they can be easily dis- 

 tinguished. A very few of the cingnlaius form have 11 anal rays and a 

 very few of chri/sotits 10, but they can be otherwise distinguished. 

 Whereas the females of F. cingulatus have no trace of pearly spots the 

 females of /''. chrysotiis almost invariably have them. As a rule, the cross 

 bars in the male, /''. cingulatus, are narrower and more numerous than in tho 

 male of F. chrysotus, though young individuals of the latter do not difl'er 

 in this respect. In Fund)ilus cingulatus there are often faint spots on the 

 scales of the back forming longitudinal lines which seem to be absent in 

 F. chrysotus. The teeth in the front row of F. chrysotus are larger than in 

 F. cingulatus. 



Page 658. Garman refers Fanduhis guttatus to F. nottii, which is very 

 doubtful, but he is right in so referring F. hicroglyphicus. He also refers 

 F. (lispar to F. nottii, which is probably wrong. 



Page 658. Fundulus guttatus (Agassiz) can not be separated from Fun- 

 dulus nottii (Agassiz). 



Page 659. Fundulus melapleurus is, as Garman observes, a Gambusia, 

 and should stand as Gamhusia melapleura. 



Adinia guatemalensis and A. pachycephala are recklessly referred l)y Gar- 

 man to the synonymy of Fundulus j)«nijnnHJs. They might just as well 

 have l)een placed at random under any other 8])ecies of a totally different 

 fauna. 



Page 660. Before, Adinia insert: 



300(a). APLOCHEILUS, McClelland. 



Snout flat, both jaws much depressed. Bones of mandible firmly united ; 

 Tipper jaw protractile ; each jaw with a narrow band of villiform teeth. 

 Body oblong, depressed anteriorly, compressed i>o8teriorly. Dorsal fin 

 short, commencing behind the origin of the anal, which is more or less 

 elongate. Intestinal tract but slightly convoluted; air bladder present. 

 (Giinther.) 



Aplocheilus, MCC1MIX.AKD, Ind. Cypr. As. Res., XIX, 301, 1839 (chrysostigmus^^panchax). 

 Panchax, CuviEE &, Valenciennes, Hist. Nat. Poiss., xviii, 380, 1846 (panchax). 

 Haplochilus, Gunthee, Cat., vi, 310, 1866, corrected spelling. 



9f>S(a). APLOCHEILUS DOVII (Giinther). 



For description and s.-ynonymy see p. 650. 



Page 662. According to Garman the air bladder is present in Ixirulus. 

 He refers B. marmoratus to the synonymy of R. cylindraceus, which is 

 probably correct. 



Add the following species : 



0;:i(a). RIVULUS ISTHME3VSIS, Garman. 



Head 3^ in body; eye 3 in head; snout 0. I). 9; A. 11; V. 6; P. 15; 

 scales 32-8. Elongate, compressed posteriorly, depressed forward; head 

 broad, much depressed, flattened on the crown; snout medium, blunt; 



