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IXDIAXA rXIVEESITY STUDIES 



16. Pygidium bogotense sp. nov. 



On the plaius of Bogota, at an elevation of nearly nine thousand feet, 

 there are Ijnown to ciccnr two spec-ies (tf tishes. the "Capitan"" Eremophilu? 

 and the '•Gnapucha" Grnndn]ns\ Both were (hscovered by Humboldt. The 

 gnapncha has recently been redeseribed as Ctenocharax by Regan. (Ann. 

 and Mag. Xat. Hist. (7i. xx. 402. 1^07.) 



I secured large series of both of these species, and. in addition, a new 

 species of Pygidium. This species reaches a maximum length of SO mm. 

 To forestall the suggestion that this species may be the yoimg of Eremo- 

 philus, I may say that I have specimens of equal length of both species. 



Head G : depth (.;-9 : D. 10 : A. 0 : eye 2. .5 in the snout. 0 in the head. 

 1.66 in interorbital ; width of head not quite eciual to its length : upper 

 pectoral ray not quite equal to length of head : origin of anal below end of 

 dorsal, of dorsal above middle of ventral s. equidistant between tip of caudal 

 and anterior edge of eye. Caudal very broad, shorter than head, rounded. 

 Maxillary barbel not reaching beyond base of pectoral, usually shorter, 

 nasal barbels to base of opercular spine. 



Sides and back variously spotted. 



Type, 75 mm., Chapinero. CM. Xo. 4S2i). 



Paratypes. two hundred thirty-nine specimens, same locality. CM. Xo. 

 4S21 a-z: I.F.M. Xo. 12679 a-z. 



Paratypes. six specimens. Madrid. CM. Xo. 4834 a-d ; I.U.M. X^o. 

 12&S0 a-c. 



17. Pygidium caliense sp. nov. 



Head 4| : depth 7 : D. S.5 : A, 6.-5 : eye 3 in snout. S in head ; interor- 

 bital equals distance from eye to nasal barbel ; head nearly as wide as 

 long. Upper pectoral ray prolonged in a filament, not quite as long as 

 head. Origin of anal slightly in advance cf end of dorsal ; origin of dorsal 

 over middle of ventrals. equidistant from tip of caudal and opercle; caudal 

 rounded : maxillary barbel extending to end of opercular spines, nasal 

 barbel an ocular diameter beyond the eye. Sides and back with small, 

 round Idack spots. Tyi:»e unique. .53 mm.. Call. CM. Xo. 6819. 



IS. Pygldiiiin chapmani sp. nov. 



Head 5-5.7.5: depth 6-7.5: D. lu: A. 7-s : eye 4 in snout. S in head, 2.5 

 in interorbital in adult (2.5. 5.5. 2 in young i . width cf head equal to its 

 length in the young, narrower in adult : tipper pectoral ray about as 



* Regan has in s-^veral papers recorded other species as coming from Bogota. 

 Crenicichia gtaifi is said to have been taken by Cutter near Bogota, Piirrhulina 

 seiiiifasciata, and Copeiiia einenmannl by Ctitter at Bogota. These species were 

 in all probability taken in the Orinoco Talley at the base of the Andes east of 

 Bogota and shipped to the British Museum from Bogota. They certainly were not 

 taken in the elevated plains about Bogota. Several of the species recorded by 

 Regan as having been taken by Leighton at Honda are under similar suspicion. 

 It is to be hoped that Mr. Regan will give us complete lists of the species col- 

 lected by Cutter and by Leighton. together with such records as may be in the 

 possession of the British Museum. Such lists, even if other data are not au- 

 thentic, will probably enable us to determine with a fair degree of accm-acy the 

 probable origin of the specimens. 



