Miss G. Ricardo on the Asilida;. 169 



Olivaceous ; dorsal with alternate series of pale and dark 

 spots. 



Upper Congo. 



Three specimens, 110 to 225 mm. in total length, from 

 New Antwerp and Stanley Pool. 



7. Tylochromis polyhpis. 



relmatochro77iis polylepis (Bouleng., 1900), Bouleug. Cat. Afr. Fish. iii. 

 p. 382, fig. 258 ('1915). 



Well distinguished from its congeners by its smaller scales 

 (55-60). Pharyngeal dentition nearly as in T. /abrodon, 

 bnf teeth still larger. 



Total length 300 mm. 



Tanganyika. 



8. Tylochromis inyJodoiij sp. n. 



Pelmatochromis lateralis (part.), Bouleng. Cat. Afr. Fish. iii. p. 385 

 (1915). 



*" Depth of body 2 to 2.^ in the lengtli, length of head 3. 

 Diameter of eye 3^ to 4;^ in length of liead, interorbital width 

 3i to 3|. Teeth small ; maxillary not extendiuia; to below 

 eye ; three series of scales on cheek ; 17 or 18 gill-rakers on 

 lower part of anterior arch ; lower pharyngeal a very strong 

 plate, almost covered with large, rounded, blunt teeth. 

 Dorsal XIV 14; spimfs subequal from fifth or sixth ; la-<t | 

 or a little less than | length of head. Anal III 7 ; third 

 spine -^ or a little less than \ length of head. PfCtoral 

 longer than head, reaching anal. Caudal peduncle longer 

 than deep. 40 or 41 scales in a longitudinal series, 7 from 

 first dorsal spine to lateral line, 27 to 29 in upper lateral 

 line, 34 or 35 in lower, 2 between lateral lines. 



Olivaceous, with six dark cross-bars ; fins unspotted. 



Lake Mweru. 



Two specimens, 115 and 235 mm. in total length. 



XXIII. — Notes on the Asilidue : Sub-division Asiliuse. 

 By Gektkuue Kicakuo. 



Pkomacuus, Loew. 



Linn. Knt. iii. p. 390 (1848). 



Trujjunea, .Miicfi. Dipt. Exot. i. (2) p. 207 (1838) [praeocc. Schrauk, 

 Dipt. (1803)]. 



This large genus is very largely represented in the South 

 African Region, and probably many more uew species will 



Ann. (& Mag. N. Uist. Ser. K. Vol. v. 12 



