ElGENMANN AND VaNCE: SpECIES OF FaRLOWELLA. 301 



dark stripe; fin-rays with dark spots; a wide stripe of black from snout 

 along sides to below the dorsal. 



6. Farlowella hasemani Eigenmann & Vance, sp. nov. (Plate XXX, 



figs. I, 2.) 

 C. M. No. 3781a, type, 165 mm.; 37816 paratype, 170 mm.. Para. 



Haseman. 



Head three and four-fifths in the length; width three and one-fifth in 

 its length; eye fifteen times in head; interorbital five and one-quarter 

 times in head; snout beyond naked area about mouth three and two- 

 fifths in the distance between its tip and the anus, two and a third 

 times as long as the postorbital portion of the head; distance between 

 occipital and dorsal about six and one-fifth in the length. 



Sides of head without bristles; scutes 15 + 19, six between occipital 

 and dorsal; abdomen with a median series of plates; outer caudal rays 

 much produced, each lobe with a longitudinal black stripe; fin-rays 

 with dark spots; snout swollen and rounded at end, compressed near 

 the end. 



In the paratype the head is three and nine-tenths in the length; width 

 of head three and one-quarter in its length; eye sixteen and one-half 

 times in head; interorbital five and three-quarters times in head; 

 snout beyond naked area about mouth three and one-quarter in the 

 distance between its tip and the anus; distance between occipital 

 and dorsal about six in the length; scutes 16 + 18. 



7. Farlowella acus (Kner). (Plate XXXI, figs. 1-4.) 



I. U. M., No. 13199, six, largest 158 mm., Barrigona, Rio Meta, eastern 



Colombia. Manuel Gonzales. 

 I. U. M., No. 13200, two, 77 and 84 mm. to base of caudal. Quebrada, 



Cramalote, Villa Vicencio, eastern Colombia. Gonzales. 

 I. U. M., No. 13252, one, 44 mm., Rio Fozco, alt. 4,500 feet, eastern 



Colombia. Gonzales. 



Description of the specimen from Barrigona: 



Length of head to end of opercle four and one-third to four and 

 three-quarter times length; distance between occipital and dorsal 

 five times in the length; width of head about three times in its length 

 10 end of opercle; interorbital four times in the head; eye thirteen to 

 sixteen times in the length of the head to end of opercle; produced part 

 of snout three and two-third times the distance between its tip and the 



