ANNOTATED LIST OF THE SPECIES 179 
Supplement to CORYDORAS 
158. COoRYDORAS BERTONI Eigenmann, sp. nov. 
15441, 1, type, 32 mm. to end of middle caudal rays, Puerto Bertoni, Alto Parana, Paraguay. 
Unusually slender with large fins. 
23 , 
PA 
reaching the adipose, the spine slightly shorter than the pectoral spine, which is 
equal in length to the head; pectoral to within the width of a lateral plate from the 
tip of the ventrals; barbels to below the anterior edge of the eye; interorbital 2.5 
in the head; eye 1.5 in the snout, 3.3 in the head, 1.3 in the interorbital space; pre- 
orbital very narrow, its width about 3 in its distance from the lip. Three azygous 
plates in front of the adipose. 
Sides light, with numerous, irregular, dark, vertical spots; dorsal with two 
oblique bands; caudal with three cross bands; anal with a vertical band across 
anterior third; upper surfaces of pectoral and ventral faintly marked. 
For A. de W. Bertoni, the collector of the specimen. 
Depth and head about 3.25 in the length; plates Die Ie 5) dorsal 
Genus 69: DIANEMA Cope 
Dianema Cope, 1871, Proc. Acad. Nat. Sci. Phila., 276; 
Higenmann and Eigenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 462; 
Gosline, 1940, Stanford Ichth. Bull., II, 1, 9. 
Type: Dianema longibarbis Cope 
Rio Ambyiacu 
Separable from Hoplosternum and Decapogon in having one barbel at each 
rictus, and a pair of long barbels at the symphysis; the exposed coracoid joined to 
clavicle its entire length, and coracoid processes entirely covering breast and belly; 
lateral plates meeting and covering back and belly. Unlike Callichthys in not hav- 
ing coracoid enclosed by skin; differmg from Brochis and Corydoras in the two pairs 
of nuchal plates, where those genera have a narrow process reaching dorsal plate. 
Adipose dorsal with a spine. 
159. DIANEMA LONGIBARBIS Cope 
Dianema longibarbis Cope, 1871, Proc. Acad. Nat. Sei. Phila., X.XIII, 276, pl. vu, figs. la, 1b, and 
le, Rio Ambyiacu; 
Eigenmann and Higenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 463; 
HKigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 402; 
Ellis, 1913, Ann. Carnegie Mus., VIII, 392; 
Gosline, 1940, Stanford Ichth. Bull., II, 1, 9. 
Known only from a Rio Ambyiacu specimen of 90 mm. in the Museum of the 
Philadelphia Academy of Sciences 
Genus 70: BROCHIS Cope 
Brochis Cope, 1871, Proc. Acad. Nat. Sci. Phila., 277; 
Higenmann and Higenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 463; 
Gosline, 1940, Stanford Ichth. Bull., II, 1, 24. 
