310 Mr. R. I. Pocock on (he Baculum or 



which differs greatly from that of Maries martes and M. foina, 

 justifies completely the future adoption of Charronia in full 

 generic sense. 



The genus may be diagnosed as follows : — Baculum long, 

 slender, nearly straight, and nearly evenly attenuated for the 

 greater part of its length, its terminal sixth being slightly 

 expanded and strongly upcurled. Its basal third a little 

 compressed above, flat below, and marked b} r a shallow wide 

 groove. The portion of the baculum between this point and 

 the upcurled end is subcylindrical and has no inferior groove. 

 The terminal portion is bent abruptly upwards and slightly 

 backwards with a concavo-convex curvature, the proximal 

 half of this portion being somewhat depressed and widely 

 grooved above and very indistinctly and narrowly grooved 

 below. The apex is a little expanded and is furnished with 

 four subsymmetrically arranged, short, blunt processes 

 arranged quadrilaterally, the two posterior being geniculate, 

 longer, and set higher up than the anterior, all ending in 

 slightly expanded and rounded tips. The anterior process of 

 the right side is the thickest of the four, and the posterior 

 of the right side is set a little further back than the posterior 

 of the left side. 



The baculum examined, extracted from an old example of 

 Charronia flavigula peninsularis, gives the following measure- 

 ments : — Total length 78 mm., length following the inferior 

 curvature of the upturned end 85 mm., basal width 4 mm., 

 width at narrowest part 3 mm., width of tip 4 mm. The 

 great length of this baculum may be judged by com paring- 

 it with that of the adult Mellivora recorded below and with 

 that of an example of Galera barbara with a basal skull- 

 measurement of 103 mm., that of the C. flavigula being 

 8(3 mm. In the Galera the baculum is only 61 mm. Again, 

 in a specimen of Martes foina with a basal skull-measurement 

 of 72 mm., the baculum is 55 mm. It thus more nearly 

 approaches the baculum of C. flavigula in relative dimensions 

 tii an in Galera. 



The baculum of Charronia flavigula differs from that of 

 Martes foina and M. martes in the following respects : — In 

 the two species of Martes the distal third of the bone is bent 

 upwards with a gradual and open curvature, the tip is not 

 expanded and ends in two branches — a lower, which is nearly 

 straight, and an upper, which rises on the right side of the 

 base of the lower and curves obliquely forwards towards the 

 left to coalesce with the distal end of the lower in adult 

 examples of M. foina, but remaining permanently distinct 



