Rodents from Angola. 321 



Measurements : — Head and body 96 inillun. ; tail 74 ; hind 

 foot 18*4 ; ear 14 ; end hairs ot tail 20. 



In a male specimen the head and body measure 103, 

 tail 84. 



Skull: greatest length 30 millim. ; greatest breadth 16*5; 

 breadth ot brain-case 14; constriction 4*G ; nasals 11*7x4; 

 interparietal bone 4 x 9'9 ; height above auditory bullrBl2; 

 height at front of palate 5'1 ; basal length 26; henselion to 

 back of palate 93 ; back of palate to foramen mag. 14 ; 

 ])alatal foramina 3'5x 2*6 ; diastema 6*6 ; molar series 3*6; 

 outside lfi-J 6'2, inside 4. Mandible (bone only), length 15*2, 

 height at coronoid 8*3. 



The most noticeable character in the skull which distin- 

 guishes this animal from its ally G. murinus is its greater 

 height and more rounded shape ; the skull is deeper in pro- 

 portion, through the brain-case and auditory bullae, than any 

 Graphiurus yet described ; the teeth also differ in pattern. 



1 have selected a specimen received from the Lisbon 

 Museum on a former occasion as the type of this species. The 

 present collection contains two specimens from Galanga ; one 

 of these is very interesting, its tail being in the peculiar 

 state which led Dr. Jentink into proposing the genus 

 Claviglis. This disease seems to be rather common in the 

 African dormice. The bones of the tail coalesce distally and 

 ■waste away, the tail gradually getting shorter ; about six or 

 more vertt- brge are affected at the same time, forming a single 

 bone tapering to a point, the muscles also wasting away. 

 One specimen in the Museum has only a length of 5 millim. 

 of healthy tail left at the base ; in another the tail is normal 

 for about 20 millim. The skin thickens in converse propor- 

 tion to the wasting of the bone, so that the tail becomes 

 club-shaped j and the shorter the tail becomes the broader is 

 the end of the club. The disease does not affect the growth 

 of the hair, for in one specimen the hairs are 27 millim. in 

 length. The animals seem well nourished and otherwise 

 healthy. 



Otomys AnchietcBf Bocage. 

 One adult female, Caconda. 



Very long clitoris. Four very small inguinal mammse. 

 Shows very slight iridescent purple and green colours when 

 wet. 



Mus, sp. 



Two mice in the collection from Caconda belong to the 

 multimammate group. 



2Ius Thoinasij sp. n. 

 All the upper parts uniform grizzled rufous brown j all the 



