THE CYPRINODONTS. 35 



TELLIA. 



Tellia Gerv., 1853, Ann. Sc Nat., XIX, 15, Extr. p. 10 ; Blk., 1860, Cypr., 481 ; Gtli., 1S66 Cat 

 VI, 308. 



TeUianini Blk., 1863, Atl, III, 139. 



In form and general characters this fish agrees with Lebias, but it lacks 

 the ventral fins. The relations existing between Tellia and Lebias are some- 

 what similar to those existing between Fundulus and Empetrichthys. The 

 affinities of Tellia apoda and Lebias calaritana are such as to suggest a pos- 

 sible derivation from the latter. 



Algiers. 



Tellia apoda. 



Tellia apoda Gerv., 1853, Ann. Sc. Nat., XIX, 15,-1866, Compt. Rend., LXIII, Val., 1858, Compt. 

 Rend., XL VI, 715; Blk., 1860, Cypr., 484; Gtb., 1866, Cat., VI, 309; Playf. & Let., 1871, Ann. Mag. 

 N. H., VIII (4), 390; Sauy., 18S0, Nouv. Arch. Mus., lU (2), 6, 15. 



D. 15; A. 13. 



Body compressed ; head rather large. Mouth opening obliquely upward. 

 Teeth in a single series in each jaw, tricuspid. Dorsal origin a little in front 

 of the posterior third of the length of the body. Caudal convex. 



" La couleur parait grisatre, mais elle est relevee chez plusieurs individus 

 de bandes brunes verticales, rappelant celles des Cyprinodon \Lehias\ calaritanus 

 eifasciakis." 



Head waters of the River Tell. (Gervais.) 



CHARACODON. 



Characodon Gunther, 1866, Cat., VI, 308. 



Shaped like some of the more elongate species of Cyprinodon. Body 

 and head compressed ; caudal portion moderately deep ; back somewhat 

 regularly arched. Mouth medium, directed upward ; upper jaw protractile ; 

 mandibles short, firmly united. Teeth in bands ; outer series larger, chisel- 

 shaped, with a notch forming two cusps ; inner small. Eye lateral, rather 

 large. Dorsal and anal behind the middle, opposed. Intestine not much 

 convoluted. 



Central America ; Cape San Lucas ; Coahuila, Mex. 



