eigenmann: the FRESHWATER FISHES OF BRITISH GUIANA 379 



Seven specimens, 33-36 mm. Tumatumari. (C. M. Cat. No. 1299a-c; 

 I. U. Cat. No. 11787.) 



Sixteen specimens, 35-44 mm. Creek below Potaro Landing. (C. M. Cat. 

 No. 1300a-e ; I. U. Cat. No. 11788.) 



Two specimens, 30 mm. Rupununi Pan. (C. M. Cat. No. 1301.) 



Fifteen specimens, 30-36 mm. Wismar. (C. M. Cat. No. 2062a-/i; I. U. 

 Cat. No. 12252.) 



Twenty-four specimens, 24-39 mm. Rockstone sand-bank. (C. M. Cat. 

 No. 2063a-/; I. U. Cat. No. 12253.) 



This species is found in small woodland streams, contrasting thus with the 

 species of Gasteropelecus, which are pelagic (in the larger rivers) in their habits. 



Head about 4; depth about 2; D. 10; A. 27-29; scales 30, twelve to fifteen 

 pores in the lateral line, the line broken after the sixth scale; eye 3 in the distance 

 from tip of chin to end of opercle. 



Easily recognized by its markings, for which see figure. 



The types of G. strigatus in the British Museum are in a bad state of preser- 

 vation, but are undoubtedly identical with G. fasciatus of Garman. 



Gasteropelecus Gronow. 



Gasteropelecus Gronow, Mus. Ichth., II, 1756, 7. — Gunther, Catalogue, V, 1864, 



342. 



Type, Clupea sternicla Linnseus. 



Short and deep; breast unduly expanded, trenchant, the pectorals very large; 

 lateral line extending down to near the origin of anal; an adipose fin; a single series 

 of premaxillary teeth; three large conical teeth along the margin of the maxillary. 



233. Gasteropelecus sternicla (Linnseus). (Plate LV, fig. 4.) 



Gasteropelecus Gronow, Mus. Ichth., II, 1756, 7, No. 255, pi. 7, fig. 5 (Surinam). 



Clupea sternicla Linnaeus, Syst. Nat., ed. 10, I, 1758, 319 (Surinam). — Kcel- 

 reuter, Nov. Com. Acad. Sci. Petropoli, VIII, 1761, 405, pi. 14, figs. 1-3. 



Gasteropelecus sternicla Cuvier and Valenciennes, Hist. Nat. Poiss., XXII, 

 1848, 169, pi. 640 (Surinam).— Kner, Denkschr. Akad. Wiss. Wien, XVIII, 

 1860, 16.— Gronow, Cat. Fish, ed. Gray, 1854, 171.— Gunther, Catalogue, V, 

 1864, 342 (Essequibo).— Garman, Bull. Essex Inst., XXII, 1890, 8 (Tabatinga; 

 Lago Alexo; Para; Curupira; Cudajas). — Eigenmann and Eigenmann, Proc. 

 U. S. Nat. Mus., XIV, 1891, 56.— Fowler, Proc. Acad. Nat. Sci. Phila., 1906, 

 452 (Surinam). — Eigenmann and Ogle, Proc. U. S. Nat. Mus., XXXIII, 



