Mindeskrift for J. Steenstrup. XVII. 



snout, eye-brows, cheeks and 

 ears. — Tail long, annulated, 

 with long hairs; ears large, 

 pointed ; feet sub-plantigrade. 



the fore limbs (together with 

 an uniting band over the shoul- 

 ders and back) and the hind 

 limbs (except the thighs) black- 

 brown. — Tail nearly invisible ; 

 ears small, round ; feet (accor- 

 ding to the authors) sub- 

 plantigrade. 



spot under the throat ; U. 

 maritimus yellowish white all 

 over the body. — Tail almost 

 invisible ; ears small, rounded ; 

 feet plantigrade (with hairy 

 soles in U . maritimus.) 



Fig. 1. Basis cranii of A. Procyon lotor, B. Ælurus fulgens. h = bulla, c. a. ^= alisphenoid canal, 

 c. c. = carotid canal, c. e. = Eustacbian canal, f. c. =^ condylar foramen, f. g. = glenoid foramen, 

 f. 1. a., f. 1. p. = anterior and posterior foramen lacerum, f. o. = oval foramen, f. s. m. ^ stylo- 

 mastoid foramen, m. a. e. =^ meatus acusticus externus, p. m. = mastoid process, p. p. = parocci- 



pital process, p. pg = postglenoid process. 

 (The specimens are from the Copenhagen museum. Natural size.) 



Skull short, rounded. 



Orbits with distinct post- 

 orbital processes from the 

 frontals only. 



Zygomatic arches very wide. 

 Crista sagittalis rather high. 



Anterior border of nostrils 

 somewhat backward sloping. 



Skull short, rounded. 



Orbits with no postorbital 

 processes. 



Zygomatic arches extremely 

 wide. Crista sagittaUs very 

 high. 



Anterior border of nostrils 

 nearly vertical. 



Skull rather elongated in 

 some species (e. g. U. arctos, 

 U. maritimus), short in others 

 (e. g. U. ornatus, U. malayanus.) 



Orbits often with distinct 

 postorbital processes from the 

 frontals (not in Melursus) and 

 the zygomata. 



Zygomatic arches moderately 

 wide. Crista sagittalis not high. 



Anterior border of nostrils 

 very sloping only in the species 

 with long skull. 



