1. crpRiNODOw. 305 



the ventral fins, which is conspicuously nearer to the extremity of 

 the snout than to the base of the caudal. The first anal ray is below 

 the fourth of the dorsal. Mandible about as long as the eye. 



Male dark greenish brown, with silvery dots on the caudal portion 

 of the trunk ; fins black, dorsal and anal with two oblique series of 

 white spots. 



Female and younij light brownish green, with numeroiis silvery 

 vertical streaks. Fins transparent, colourless. 



Persia, Syria. 



a. Many specimens, |-1| inch long. Ain Feshkhah. Dead Sea. 

 From the Collection of the Rev. H. B. Tristram. 



6. Cyprinodon punctatus, 



Lebias punctatus, Heckel, in Russegyer, Reise, ii. 3. p. 268, taf. 22, 

 %.3. 



D, 11. A. 10. L. lat. 27. L. transv. 3/4. 



Very closely allied to C. sopMce, from which it differs in the colo- 

 ration. Silvery, with numerous brown spots disposed in irregular 

 longitudinal series ; a brownish band from the eye to the upper end 

 of the giU-opening ; fins uniform yellowish. Females \vith the spots 

 paler. (Reel.) 



Nemek-Deria, a saltwater lake near Schiraz. 



Lehias crystallodon, Heckel, in Russegger, Reise, ii. 3. p. 269, 

 taf. 22. fig. 4, from the same locality, is perhaps merely an old 

 female, after spawning, of the preceding species. 



7. Cyprinodon mento. 



I^ebias mento, Heckel, in Rnsseyyer, Reise, i. p. 1089, taf. 6. fig. 4. 

 Cyprinodon mento, Cuv. ^~ Val. xviii. p. 171. 



D. 12. A. 11. V. 6. L. lat. 27. L. transv. 3/4. 



The height of the body equals the length of the head, which is 

 two-sevenths of the total (without caudal) ; the diameter of the 

 eye is one-fourth of the length of the head, and one-half of the 

 width of the interorbital space. Ventral fins scarcely in advance of 

 the middle of the total length (the caudal not included), but con- 

 spicuously in advance of the dorsal. The anal fin commences below 

 the middle of the dorsal, with the hinder third of the total length 

 (without caudal). Dorsal and anal fins not elevated. Male dark 

 brown, with the fins black- and white-dotted. Female lighter, with 

 uniform whitish fins. (Hecl-el.) 



Mosid. 



3. SjJecies of the New World. 



8. Cyprinodon variegatas. 



Cyprinodon vaviegatus, Laeep. v. pp. 48(!, 487, pi. 15. fig. 1 ; Valenc. 



in Humb. Obs. Zoul. ii. p. 165 ; Cuv. ^- Val. xviii. p. 173. 

 Esox oviniis, Mitch. Tmns. Lit. l^ Phil. Sue. New York, 1815, i. p. 441, 



pi. 4. fig. 7. 



VOL. VI. X 



