NATURAL SCIENCES OF PHILADELPHIA. 6t 



Leptognathus nebulatus, L. 

 Elaps nigrocinctus, Gird. 

 Bothrops atrox, L. 

 Teleuraspis schlegelii, Berth. 



Yellow variety with short superciliary horns. 



LACERTILIA. 



Anolis bransfordii, sp. nov. 



Abdominal scales smooth, pavement-like, longer than the dorsal 

 and lateral scales, which are small, subequal, and smooth. Scales 

 of tail subequal, carinate. Muzzle medium, shorter (from eye) 

 than wide at orbits. Auricular meatus large, fully half of eye. 

 Facial rugse obsolete, bounding a distinct cavity, Avhich is covered 

 b}'^ smooth scales of the size of those on the remaining portions of 

 the muzzle, in six longitudinal series. Superciliaries wide, sepa- 

 rated from each other by one, and from the large occipital bj' 

 two rows of scales. Twelve supraorbital scuta keeled ; six loreal 

 rows ; fan little developed. Infralabials equal, small. Limbs 

 slender, the anterior extending to the groin, the posterior to the 

 end of the muzzle ; dilatations well developed. Brachial and 

 femoral scales equal ventral. Tail long and slender. 



Color above golden-lead color, beneath silvery, the line of sepa- 

 ration defined from the orbit to the groin. No cress bands on 

 head or body ; front brown speckled ; feet blackish. 



and that of Cyprinodontidoi. The form and scaling of the head and mouth, 

 with the small sphious dorsal, are very similar to those of the Mugils, while 

 the posterior position of the ventral fins and supporting bones, with the 

 simple stomach and intestine, are characters of the latter family. I was 

 unable to find any ductus pneumaticus, and if it exist it must be very slender. 



The weight of evidence is in favor of referring this genus to the Cyprino- 

 dontido}, and should its only dorsal spine occasionally be wanting, the refer- 

 ence will be less inappropriate than might at first appear. 



The rudimental dorsal consists of a short (.003 m.) spine, but little ele- 

 vated above the doi-sal line on account of the small extent of the membrane 

 VFhich binds it. It is well separated from the second dorsal. 



This fish must be regarded as an interesting annectaut form between types 

 usually placed in the distinct divisions of Physostomi and Physoclysti. 



