(42) 



t)iinensions of the type, meat^ured in the flesh : — 



Head and body, 410; tail. 330; hindfoot s.u. 6t), c.u. (J8 mm. 



Skull, basilar length, 71 mm. 



Skull of a larger sjiecimen (No. 1082) female, also from Sevilla : — 



Greatest length. 88 ; basilar length, 74 ; zygomatic breadth, 50; nasals, 26 x 18; 

 inter-orbital breadth, 3(.i ; height of frontal inflation from palate, 31'5; height of 

 brain-case from between bullae, 26; width of nasal opening, 17; diastema, 2ri; 

 l)alatal foramina, lO'o x 5'o ; length of tooth-row, 17'0 mm. 



Hab. Sevilla (tyi)e) and Brava Is. 



Type : Mule. Original number 723. Collected January 24th, 1902, by J. H. Batty. 



This animal is a most interesting discovery, for it has no connection with the 

 only Porcui)ine, the hairy C. mexlcaniis, hitherto known from Central America. It 

 is a member of the C hicolor group, which is now shown to range from Bolivia 

 (C. simonsi) through Peru (C. hicolor) and Ecuador (C. qaichua) northwards to the 

 present locality. As might be expected, it is most nearly allied to the last-named, 

 but is more heavily white-speckled than that animal, besides differing in various 

 cranial details. 



To C. preheiisills there is an even stronger superficial resemblance than is the 

 case with the other species of the gi"oup, but all are readily distinguished from that 

 animal by the rump spines being differentiated from those of the body in colour 

 and length. 



(iobernador, (i. 



18. Sylvilagus gabbi All. 



19. Tamanduas tetradactylus L. 

 Gobernador. 1 ; Cebaco, 2. 



These specimens are not unlike the form described by Gray as " var. opistho- 

 leiocus." (Type from Colombia.) Mr. Bangs uses Cope's name " tiellatit" originally 

 based on a Honduras example. 



20. Cholaepus hoiFmanni Peters. 

 Espartal, 2 ; Sevilla, 1 ; Cebaco, 7. 



21. Didelphis marsupialis Linn. 



Sevilla, 2 ; .\fuera, 2 ; (iobernador, 3 ; Tologa, I ; Bra\a, 5 ; Cebaco, 3. 

 As on the mainland, these island opossums differ much among themselves but 

 none are as uniformly brown-faced as the Coiba form, D. rn. huttyi. 



22. Metachirus (opossum) fuscogriseus Allen. 

 Sevilla, 2. 



23. Caluromys laniger pallidus Thos. 

 Brava, I ; Gobernador, 1 ; Cebaco, 2. 



