138 Dr. E. Lonnberg on Fishes from the 



from the foremost dorsal spines, the fifth from the dark sjDot 

 of soft dorsal, the sixth at the end of the dorsal, and the 

 eio'hth at the base of the caudal. Anal and ventrals dusky 

 to blackish. Total length with the caudal probably about 

 82-85 mm. 



This form is evidently closely allied to T. Maricp, Bou- 

 lenger, with which it agrees in relative dimensions of head 

 and body, number of rays of vertical fins, and exterior 

 markings. The differences are found in the dentition (as 

 Mr. Boulenger says* respecting T. Alarice, "teeth small, in 

 three series "), and in the shortness of the pectoral in the last- 

 mentioned species, in which it is only as long as head and 

 does not extend to origin of anal. On the other hand, the 

 ventrals of T. Marice are longer and reach origin of anal. 

 That species has also four series of scales on the cheek. It 

 should also be mentioned that Boulenger's specimens were 

 about the same size as mine, so that the differences are not due 

 to age. 



T. Buttikoferi (Hubrecht) seems also to resemble this form 

 in having eight dark bars and similar relative proportions. 

 The teeth of the outer row in that species are also simiharly 

 enlarged ; but T. Buttikoferi differs in having " 5 or 6 series 

 of scales on the cheek," smaller number of spines but larger 

 number of soft rays in the dorsal, shorter pectoral (subequal 

 to or shorter than head, not extending to origin of anal), 

 and longer ventral as in T. Marice. To unite these appears 

 therefore impossible or only apt to cause confusion. When 

 these fishes become more perfectly known, it may be possible 

 to place some series of forms togetiier as subspecies under 

 one and the same species ; but this seems rather early yet, 

 and therefore it is best to collect as much knowledge as 

 possible by carefully describing the different varieties. 



From the Elephant Lake only one species has been added 

 to the collection f, but it is of interest as being new to 

 science. It is a Barhus of the B. Bynni group, and I propose 

 to call it 



Barhus LinneUii, sp. n. 

 Depth of body o^ to nearly 4 (3j\) times in total length 



* In his very valuable paper " A Revision of the African and Syrian 

 Fishes of the Family Cichlidse. — Part II.," Proc. Zool. Soc. London, 

 1899, p. 98. 



t Mr. Linuell informs me that Mr. Rathke, of the German station, 

 Joliann Albreclityliohe, lielped him to procure this fiah from tlie 

 ^Elephant Lake. 



