294 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Persistent Craniopharyngeal Canal in Homo* — Otto Schlagin- 

 haufen found in the skull of an adult female semang from the Malay 

 Archipelago, a persistent craniopharyngeal canal — a very rare arrest of 

 development. The canal remains open in a certain percentage of 

 anthropoid skulls, e.g. 24-25 p.c. in the orang ; 43' -4 p.c. in the gorilla ; 

 66*6 p.c. in the chimpanzee. 



Structure of the Gorilla.f — "W. Kiikenthal points out that, owing 

 to lack of good material, our anatomical knowledge of the gorilla has 

 lagged behind our knowledge of the other anthropoid apes. He has 

 set himself to remedy this defect, and we have an account of the eye 

 by Heine, of the lingual papillae by H. Stahr, of the female urogenital 

 system by U. Gerhardt, and a note on the animal's life and habits by 

 F. Grabowsky. 



Cerebellum of Mammals. | — Louis Bolk has published as a volume 

 three studies on the comparative anatomy of the cerebellum of Mammals, 

 which originally appeared in " Petrus Camper." It will prove a useful 

 guide to the study of a part of the brain which merits more attention 

 than it has hitherto received — from the comparative anatomist's point 

 of view at least — and a supplement to the recent investigations of 

 Elliot Smith and Charnock Bradley. 



Ciliary Ganglion of Carnivores.§ — T. M. Lecco has studied various 

 Carnivores, e.g. cat and dog, and finds that the ciliary ganglion includes 

 two ganglia, majus and minus. The ganglion ciliare majus is in very 

 close association with the oculomotor nerve ; the ganglion ciliare minus 

 seems to be dependent on certain nerve bundles, which form the radix 

 longa. This radix longa includes three sets of nerve-fibres. One set 

 behaves like the nerve-bundles of the ciliary nerves ; the second seems 

 to enter into relations with the G. ciliare minus • the third is connected 

 with the G. ciliare majus, and is, perhaps, identical with the radix 

 recurrens in man. 



Black-and-tan Pattern of Domestic Dogs.|I — R. I. Pocock points 

 out that if a dog with this pattern be compared with many of the 

 common wild species of Canidge, it will be seen that the tan occurs 

 over areas which in the wild species are paler than the rest of the 

 body, owing to the fading or absence of the black annuli which pre- 

 vail in the hair elsewhere, and that the black corresponds to the 

 darker portions of the body, where the hair is richly pigmented, in 

 the wild animals. This statement only needs qualification with respect 

 to the tan spots over the eyes, the homologues of which are by no 

 means always visible in wild dogs, or, at all events, are not sufl&ciently 

 evident to carry absolute conviction as to their presence. 



Black-and-tan dogs may be termed melanescent, or, preferably, 

 nigrescent sports. The tan stands in the same relation to the pale 



* Anat. Anzeig., xsx. (1907) pp. 1-8 (5 figs.). 



t Jen. Zeitschr. Naturw., xli. (1906) pp. 607-54 (3 pis. and 17 figs.). 



X Das Cerebellum der Saitgetiere, Jena, 1906, 337 pp., 3 pis. and 183 figs. 



§ Jen. Zeitschr. Naturw., xli. (1906) pp. 483-504 (18 figs.). 



II Ann. Nat. Hist., xix. (1907) pp. 192-4. 



