168 DH. BASHFORD DEAN OX TilE [Feb. 20, 



30. NoTOTKAGUS MELAXOTIS Tliunb. 



Nototragus, nom. nov,, Thos. & Scliw. Abstr. P. Z. S. No. 27, 

 p. 10, Feb. 27, 1906. 



J. 1051. $.1059. Plettenberg Bay, 



We are glad to express our agreement with Dr. Jentink * in 

 considering that the Grysbok should be geneiically separated from 

 the Steenboks on account of its possession of supplementary hoofs. 

 In the skull also it may be distinguished by its larger anteorbital 

 pits, which are shaped very much as in Ourehia, with a marked 

 ridge above them, running across the lacrymals. 



But in using Sundevall's name of Calotragus for this animal, 

 Dr. Jentink has not noticed that that author expressly selected 

 his '■^species prima" {Calotragus tragulus = RajAicerus campestris) 

 as the type, so that in no case could the name be used for the 

 Grysbok, to which we would therefore propose to ajoply the above- 

 given generic term. 



With regai d to the use of Raphicerus, we can only reiterate the 

 opinion given in the ' Book of Antelopes,' that Blainville's figure 

 of " Antilope acuticornis'' on which the name hangs, is either the 

 common Steenbok (as we suppose) or at least a species congeneric 

 with it. 



31. Tragelaphus sylvaticus Sparrm. 

 $. 1050. Knysna. 



4. ^otes on the Living; Specimens ot" the Australian Lung- 

 fish, Ceratodus forsteri, in the Zoological Society's 

 (^llection. By Bashfokd Dean, Ph.D. f 



[Received November 6, 1905.] 



(Plate IX.J and text-figs. 53-55.) 



During a recent visit to London, September 1904, I was 

 given the opportunity of examining specimens of Ceratodus in 

 the aquai'ium of the Zoological Society's collections. And the 

 f(illowing notes are presented, since they add several details to our 

 rather scanty knowledge of the habits of this important and rai'e 

 form. 



The followiuj)- is an abstract of the more important accouiitn of living 

 Ceratodus : — 



Habits in general. — Never goes out of w ater (accordiug to «11 recent 

 authors), could not be " made to progress in only a fevr inches of water '' 

 ( Uamsay, similarly Spencer). Passive, helpless out of water (Spencer, 

 Senion, Illidge), and dies within one or two hours (Seniou), or eight to 

 ten hours (Spencer) : if kept moist, however, it will live for a long time 

 (O'Connor), e. (7. if wrapped in wet water-weed. In general hardy and 

 now acclimated in a number of Australian rivers. Under usual conditions 

 sluggish, " too lazy to get out of the way when about to be handled " 



* Notes Leyd. Mus. xxii. p. 33 fl900). 

 + Communicated by R. I. Pococic, F.Z.S. 



J P'or explanation of the I'late, sec p. 178. 



