296 ON uXNotiALE jjENNE'm. [Mar. 20, 



(6) The coraco-brachialis has ouly the second part iu Hystrix, 

 in the Tree-Porcupines the second and third parts are present. 



(7) The brachiaUs anticus consists of two parts iu Hystrix, while 

 in Sphingurus only the external is present. (8) The extensor 

 secundi interuodii poUicis is present in Hystrix, absent in the 

 Tree-Porcupines. (9) The pyriformis is absent in Hystrix, 

 present in Splmvjurus. (10) The biceps femoris is normal in 

 Hystrix, while the t\vo parts are distinct in the Tree-Porcupines. 

 (11) The perouens quarti digiti is present in Hystrix, absent iu 

 the Tree-Porcupines. 



The ouly two definite muscular characteristics of the Hystricidse 

 as a family are : (1) The latissimus dorsi at its insertion wraps 

 round the lower border of the teres major. (2) The scalenus 

 anticus is absent. 



Chinchillidce.—{1) There are two heads to the biceps cubiti, which 

 is inserted into both bones of the forearm. (2) The tibialis anticus 

 rises from the tendon of origin of the extensor longus digitorum, 

 as well as from tlie tibia. (3) The extensor proprius hallucis is 

 absent. (4) There is no peroneus quinti digiti. (5) The omo- 

 hyoid is absent. 



Dasyproctidce. — (1) The scapnlo-clavicularis is specially well 

 developed. (2) The deltoid reaches down as far as the elbow. 

 (3) The biceps cubiti has only the long head and is inserted into 

 the ulna. (4) The first and second heads of the coraco-brachialis 

 are present. (5) The trapezius is divided into an anterior and a 

 posterior part. (6) A splenius colli is present. (7) The scanso- 

 rius is distinct. (8) The supracondylar slip of the semimembra- 

 nosus rises from the tuber ischii. (9) The tibialis anticus rises by 

 tendons from the front of the external condyle of the femur, as 

 well as from the front of the tiliia. (10) The omo-hyoid is absent. 



Caviidce. — (1) The biceps cubiti has one head and is insei'ted 

 into the ulna. (2) The coraco-brachialis only has the second part. 

 (3) The trapezius is double. (4) There is a distinct scansonus 

 (5) The pectineus rises by a narrow tendon. (6) Tibialis anticus 

 rises from tendon of origin of extensor longus digitorum as well 

 as from the tibia. (7) The extensor proprius hallucis goes to the 

 second toe. (8) The peroneus quinti digiti is absent. (9) The 

 omo-hyoid is absent. (10) The levator claviculse rises from the 

 basioccipital. 



2. Notes on Cynogale bennetti, Gray. 

 By Babu Ram Bramha SAnyal, C.M.Z.S. 



[Eeceived January 29, 1894.] 



The acquisition by the Zoological Garden, Calcutta, of a spe- 

 cimen of Oynogale bennettii, Gray, from Borneo, has enabled me 

 to have a water-colour sketch made of this interesting mammal 

 whilst alive, which I beg leave to forward to the Society, together 

 with a few notes regarding its external characters and habits in 



