ANNOTATED LIST OF THE SPECIES 133 
90. Doras puNCTATUS Kner 
Doras punctatus Kner, 1855, Sitzb. KKK. Akad. Wiss. Wien, VII, 136, pl. vi, fig. 10, Matto Grosso 
and Rio Guaporé; 
Eigenmann, 1925, Trans. Amer. Phil. Soc., X XIT, 343, pl. 1, fig. 5; pl. xxi, figs. 1 and 2; text 
fig. 12, E. 
Hemidoras punctatus Eigenmann and Eigenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 255; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 394. 
Peruvian Amazon to Matto Grosso and Guaporé 
15882, 1, 118 mm., Rio Paranapura, Yurimaguas, Allen, November, 1920. 
15883, many, largest 99 mm., Lago Cashiboya, Allen, August, 1920. 
Of the small-eyed group, the eye not exceeding the interorbital, but con- 
tained in it only 1.6 to 1.75; first lateral seute moderate, not reaching the coracoid 
process; dorsal spine shorter than the pectoral, not reaching the adipose; maxillary 
barbel not reaching beyond the base of the pectoral. 
Genus 45: HEMIDORAS Bleeker 
Hemidoras Bleeker, 1858, Ichth. Arch. Indici, Siluri, I, 53; 
Eigenmann and Eigenmann, 1888, Proc. Cal. Acad. Sci., (2), I, 158; 
Figenmann and Eigenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 250; 
Figenmann, 1925, Trans. Amer. Phil. Soc., X XII, 347. 
Type: Hemidoras (Oxydoras) stenopeltis Kner 
Upper Amazon, Madeira, and Rio Negro 
Nuchal shields with a foramen on each side; maxillary barbel with a fringe of 
many barblets; a series of scutes between the dorsal and adipose, and sometimes 
between the ventral and anal; of the group with long, subconical snout; lateral 
plates well developed along the entire line; humeral process longer than deep; 
mouth small; mental barbels fringed and united by a membrane at the bases; fon- 
tanel continued as a groove. 
91. HEMIDORAS STENOPELTIS (Heckel) 
Corydoras stenopeltis Heckel, in Kner, 1855, Sitzb. KIX. Akad. Wiss. Wien, XVII, 142, pl. iv, fig. 7, 
Rio Negro. 
Hemidoras stenopeltis Eigenmann and Eigenmann, 1888, Proc. Cal. Acad. Sci., (2), I, 158; 
Eigenmann and EFigenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 256; 
Eigenmann, 1925, Trans. Amer. Phil. Soc., X XII, 347. 
Peruvian Amazon to the Rios Madeira and Negro 
15907, 1, 80 mm., Pebas, J. B. Steere. 
92. Hemiporas morris! Eigenmann 
w 
Hemidoras morrisi Eigenmann, 1925, Trans. Amer. Phil. Soc., X XII, 347, pl. xxvu, fig. : 
