48 CYPRTXIB.T.. 



i-I. Youn.;?. Cliartonin. From Mr. Pctlieriek's Collection. 



m. Hiilt'-grown. Oondukoro. IVoiii Mr. Pethcrick's Collection. 



n. Adult : stuffed. 



0, p. Skelotoubi. ].ower Xile. 



I have but little doubt that the description given by Hasselquist 

 of his Ciijirintis ri(f('?ceii>i was taken from a young example of 

 tliis sp(>cies, and, consequently, that it shoidd bear the name of 

 Labeo ri(f('sccm. However, the di-scription is very incomplete and 

 not free from errors. No locality is named ; but as most of the 

 other IVeshwatei- fishes are Xilotic species, it is almost certain that 

 C. nif.s rjt^ n]<'> ])elongs to that fauna, and not to that of Palestine, 

 as groundlessly stated by Hcckel and copied by l)leel<er. 



On comparing the sl-ch'tni (see \). 40) of L. niloficas with tliat of 

 L. forshalii the following peculiarities are apparent:" 



1 . The jawbones are remarkably small and short, especially the 

 interniaxillar}". 



2. The pr;roperculum is of the usual shape. 



3. Tlie three ridges of the occipital crest are close together, the 

 lateral being very low. The interneural and neural elements of the 

 four anterior vertebra; nearly entirely confluent. 



4. The interneural spines of the dorsal fin correspond to the 

 ncurals of the ninth to twenty-second vertebra;. 



2. Labeo couhie. 



Labpo coubie, ltiippclI,Forfsctz. d. Bc^chrcih. ncncr Xil-FUchc, p. 11, 



tab. a. fig. 1 (cop. by Cm\ cS'- VoL xvi. p. ^44). 

 niloticus, Cuv. tS'- V<d. xvi. p. ;3:iH,pl. 485 (not pood) (not sjTion.) ; 



llvclul, in lixs^cf/r/er, lieiscn, ii. ■-i. p. i^U'.), tab. 20. ti<r. 1. 



congoro, Pctir>', Jfi))i(dsLcr. Ak. Wiss. Berlin, 18o2, p. GS3. 



.P Labf altivelis, Pliers, I. c. 



D. 14-10. A. .S. I,, lat. 3.5- :}7. L. transv. 0^/0. 



Mouth (-f moderate width. Lips moderately thick, with a distinct 

 inner fold in their entire circumference ; lower lip sometimes indis- 

 tinctly fringed. Snout rather produced, obtuse in front, moderately 

 projecting beyond tlic lower jaw, with a distinct lobe on each side ; 

 maxillary Ijarbel very small, hidden in a deep lateral groove. Eye 

 ratlier small, as large as a scale in middle-sizc;d specimens, though 

 comparatively smaller in large ones ; // /.s situated behind the middle 

 of the leiv/ih of tJic head in adidt exanqjha, and /;/ tJie middle in 

 yountjer onex. There arc four or five longitudinal series of scales 

 between the lateral line and the ventral hn. Upper margin of the 

 dorsal fin convex, the middle rays being the longest, and certain 

 (male?) specimens having this fin considerably elevated. Body, and 

 especially the tail, com])res.sed and elevated, the greatest depth of 

 the liody Iteing contained tlirice and one-third or thrice and one- 

 fourth in the total (without caudal). Coloration uniform. iSnout of 

 certain specimens with small coneavc tubercles. 



Nile ; Ivist Africa. 



(t. Sixteen inches hmtr : stuffed. Nile. 



