268 MR. G. A. BOTJLENGBR ON [Mar. 19, 



Of Tertiary Lemurs, Mierochderus (Necrolemur) agrees ia this 

 and other respects with the Galagos, Adapis with the Mahigasy 

 Lemurs. 



EXPLANATION OF PLATE XXII. 



(All figures are of the natural size.) 



Figs. 1-.5. Lemur rubriventer I. Geoffr. S.-H. Left orbit of young, adult, and 



old individuals. 

 Fig. 6. Lemur rubrit-ente?: Lower view of part of the skull (region of the 



posterior nares), to show the position of the opening, a, of the palatal 



sinus. 



7. Lemur rubriventer. Lower view of the skull. The opening of the 



choanaj is narrowed by part of the palatal sinus (pp). 



8. Lemur rubriventer. View of part of the orbit. The bony roof of the 



palatal sinus has been removed in order to show the inner aspect of 

 the floor, a — the aperture of the sinus leading into the nasal 

 cavity (c/. fig. 6). 



9. Lemur fulvus E. Geoffr. S.-H. (Br. M. 91.1.22.5). Part of lower view 



of the skull, to show the lower wall (ss) of the sphenoidal sinus. 

 10. Lemur mongoz L. (Br. M. 77.4.2.21). Part of lower view of the skull, 

 to show the pwrs perpendicularis {pp) of the palatal. 



3. Descriptions o£ new Freshwater Fishes discovered by Mr. 

 F. W, Styan at Niugpo, China. By G. A. Boulenger, 

 F.R.S. 



[Eeceived March 11, 1901.] 



(Plates XXIII. & XXIV.i) 



Mr. F. W. Styan, F.Z.S., who has added so largely to our know- 

 ledge of the Fishes of the Yantse-kiang ', has lately brought home 

 a small collection made at Ningpo, which he has presented to the 

 British Museum. Few freshwater Fishes have hitherto been col- 

 lected in this district, a single species having been described from 

 the collection of Abbe David ^, and a few from a series sent by the 

 Chinese Government to the Berlin Fisheries Exhibition in 1883 "', 

 It is therefore not surprising to find representatives of some new 

 species in the small series brought together by Mr. 8tyan, These 

 belong to the family Cyprinidse, so richly represented in the fresh 

 waters of China. 



Ceossoohilds styaki, sp. nov. (Plate XXIII. fig. 1.) 



Depth of body 3| to 3| times in total length, lengtli of head 

 4| to 4^ times. Snout with strongly curved profile, projecting 



^ For explanation of the Plates, see p. 271. 



- A. GiJNTHER, Third Contribution to our Knowledge of Eeptiles and Fishes 

 from the Upper Yangtse-Kiang. Ann. Mag. N. H. (6) iv. 1889, p. 218. 



^ H. E. Sauvage et Dabrv de Thibksant, Notes sur les Poissons des Eaux 

 douces de Chine. Ann. Sci. Nat. (6) i. 1874, art. 5. 



' W. Peters, Ueber die Fischsammlung ausNingijo. Mon. Berl. Ac. 



1880, p. 921. 



