EINAR LÖNNBERG, MAMMALS FROM ECUADOR. 5 



etc. C. remulus Thomas has also the outer sides of 

 the limbs greyish brown, hands and feet greyish white etc. 

 C. toppini Thomas has the hairs on the proximal two thirds 

 of the tail tipped with black. Thomas considers the last 

 form to be allied to C. cupreus Spix, and it is rather pro- 

 bable, that the present form, as well as those enumerated 

 above, are to be regarded as geographical subspecies of G. 

 cupreus. From the latter the present specimens differ with 

 regard to the colour of the top of the head, which Elliot, 

 who has examined the type, describes as »gray», and »buff- 

 yellow on före head». The colour of the back also appears 

 to be different, Another thing is, that Thomas has stated 

 that C. cupreus has no black hairs on the forehead, while 

 these, as mentioned above, in the present specimens form a 

 narrow bar on the forehead. 



C. paenulatus Elliot appears also to belong to the same 

 group, but, although it is similar with regard to the colour 

 of the lower parts and legs, it seems to be very different in 

 hawing a »mantle», which is said to be »tawny ochraceous 

 uniform, extending behind shoulders; middle of back dark 

 hair brown, grading into tawny ochraceous on the rump» 

 (Elliot); and Thomas speaks about an »elongated mantle, 

 paler than the rest of the back» in the same species. This 

 is, of course, entirely different from the condition of the 

 present specimens, in which the hairs are nearly of equal size 

 all över the upper parts, about 40 mm., or a little more, 

 perhaps partly 45 mm. on the neck. Likewise the hairs are 

 ringed everywhere on the body, so that there is no trace of 

 a påle and unicoloured mantle. 



The two specimens from Napo are both ahke. The one, 

 which has been described above as the type, is an old male 

 with much worn teeth. The length of head and body is 

 about 34,5 cm. in both specimens. The length of the tail 

 is, when moistened, 38,5 m. The length of the hind foot is 

 in one specimen 85 mm., in the other 90 mm. 



With regard to the dimensions C. cupreus appears to be 

 very different as Elliot, who has measured the type, says 

 that its total length is 900 and the tail 290 mm. The pro- 

 portions of C. paenulatus are also different from those of the 

 present form, but in another direction as it has a long tail 

 measuring 520 mm. with a total length of 850 mm. 



