188r..] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 2o 



12. Lepomis megalotis Rafinesqiie. 



Coloration greener than usual in Northern specimens, but otherwise 

 very similar. 



13. Hadropterus scierus serrula Jordan & Gilbert. 



Abundant in the San Marcos; not different from Northeru examples. 



14. Etheostoma lepidum Baird & Girard. 

 Abundant. 



15. Etheostoma lepidum Baird & Girard. (3651G.) 



16. Alvarius fonticola Jordan «Ss Gilbert. (36523.) 



Abundant in the San Marcos. 



This species or variety is very close to the Northern Almrius {Micro- 

 perca) punctulatus. The only tangible differences seem to lie in the 

 coloration and in the constant presence in A. fonticola of but one anal 

 spine. The head in A. fonticola is nearly or quite devoid of scales. In 

 life it is light olivaceous, the scales broadly margined behind with 

 dusky. About eight indistinct dusky cross-blotches on back, the dorsal 

 region dusted with fine dusky specks. A series of dark stitch-like short 

 horizontal lines along the middle of the sides, forming an interrupted 

 lateral streak. Three small dark spots at base of tail. Soft parts of 

 vertical fins with light and dark bars. Lower half of spinous dorsal 

 jet-black, then a broad red band narrowly edged above with black. A 

 dusky streak below orbit and one in front of it. 



J. — RIO COMAL, AT NEW BRAUNFELS, TEXAS. 



At New Braunfels, Tex., the Eio Comal flows into the Guadahipe River. 

 The latter is a considerable stream, very swift, and with rough rocky 

 bottom, not suitable for seining at any point where we have seen it. In 

 summer most of the water of the Comal comes from a large spring near 

 New Braunfels, the outlet of which runs down a steep slope, turning a 

 mill and flowing into the half dry bed of the main branch of the stream. 

 Most of our fishing was done about the point of junction of the two 

 streams. Not many species were obtained, but certfiin Minnows were 

 extremely abundant. 



1. Mozostoma congestum Baird & Girard. 



2. Cliola vigilax Baird & Girard. 

 Very abundant. 



3. Dionda episcopa Girard. 



Small specimens, rather more slender than Girard's types. Lat. 1. 40. 

 Caudal spot distinct. 



4. Notropis deliciosus Girard. 



Abundant. Compared with specimens from the Des Moines, those 

 show some diiforcnces. The ibnn is more shMuler; the (toleration is 

 darker; the dark points on the edges of the scales being coiispictiious. 



