1922] NATURAL SCIENCES OF PHILADELPHIA. 21 



species by the larger black blotch, similar to that of the adult. 



Notropis callistius (Jordan). Forty-one examples. 



Notropis cornutus (Mitchill). Four young. 



Notropis chrosomus (Jordan). Five examples. In alcohol the 

 largest shows an orange band above adjoining the dusky median 

 band. Iris silvery-white, with slight rosy-purple tint. 



Catostomus nigricans (Le Sueur) Four young. 



Boleosoma stigmaeum (Jordan). 



Head 3^ to 3f; depth 5f to 6^; D. IX— i, 11; A. II, 9; scales 

 42 in lateral line to caudal base and 2 more on latter; tubes in 

 1. 1. 23 to 32; 5 scales above 1. 1., 5 below; predorsal scales 8; snout 

 3 1 to 3 1 in head; eye 2>\ to 4; maxillary 3^ to 3|; interorbital 

 If to 2 in eye. Body elongate, slender, but slightly compressed. 

 Head well compressed. Muzzle rather short, length f its width. 

 Eye large elevated. Mouth small, lower jaw slightly included. 

 Maxillary not quite to e} r e, but little protractile. Interorbital 

 narrow. Opercular spine moderately large. Gill-membranes 

 deeply cleft, but slightly connected. Scales on opercles, head 

 otherwise naked. Breast and predorsal naked. Scales with 9 

 or 10 basal marginal striae, apical denticles 19 or 20, rather large, 

 with three series of basal elements, and circuli large. Caudal 

 slightly emarginate. Color in alcohol pale brownish tessellated or 

 speckled with deep brown to dusky above. About nine w-like 

 marks of dusky close along and below lateral line. Six dark saddles 

 down middle of back. Dorsals and caudal finely barred with 

 duskjr. Dusky streak from eye to snout tip and another below 

 eye. Two examples. 



This species bears a great resemblance to Boleosoma nigrum, 

 though both specimens show two anal spines. In my series of 

 Boleosoma nigrum there is usually but a single anal spine. Originally, 

 described with a band of bright orange red above on the spinous 

 dorsal. 



Cottus bairdii Girard. One 44 mm. This represents the Pot- 

 amocottus zopherus Jordan, or the dark colored southern variety 

 of the Alabama basin. 



Alabama. 



(1). We first visited Swan Lake, in Morgan County, October 10. 

 This is a large still body of water, mostly muddy, about a mile 

 long and a few hundred yards in width. During very high water 

 it is connected with the Tennessee River. 



Polyodon spathula (Walbaum). Tail of a large example examined; 

 caught in the lake. 



