ANGUILLIDiE. 41 



dark olive-green, with innumerable points ; of the under surface, 

 smutty ■white, with a silvery lustre. 



Length, 20-67 in. Length of tail, llSl in. 



Nile (Geoffroy St. Hilaire and Joannis). 



80. Anguii-la callensis. 



Anguilla callensis, Guichenot, Expl. Scient. Alg. p. Ill, pi. 7, f. 1, 

 1850. 



This species also approaches very nigh to acutirostns ; but the 

 eye is not wholly over the corner of the mouth. In the compara- 

 tive dimensions of parts there is also some discrepancy. The 

 largest of five specimens measured as follows: — Total length, 17'32 

 in. Length of tail, 10-5 in. To the corner of the mouth, 0-51 in. 

 To the pectoral, 197 in. To the dorsal, 5-20 in. Length of pec- 

 toral, 0-63 in. 



According to M. Guichenot, this species, which varies much, 

 abounds in the fresh waters of Calle, in Algeria. 



81. Anguilla canaeiensis, fig. 29. 

 Anguilla canariensis, Valenc. 



A moderately-elongated species, with pointed snout and very thin 

 lips. The small eye stands over the corner of the mouth, and its 

 diameter is contained twice in the length of the snout. The pec- 

 toral is somewhat longer than the mandible. 



Palatine teeth disposed in two rows anteriorly, and in one poste- 

 riorly. Nasal bone and vomer armed by five rows of somewhat 

 irregularly ranged teeth ; the vomerines passing into two rows on 

 the palate. Colour above, a dark olive tint, dotted with black. 

 Belly and anal fin, yellowish-green. 



Length, 2008 in. Length of tail, 11-42 in. To the eye, 0-51 in. 

 To the corner of the mouth, TIO in. To the pectoral, 2-52 in. To 

 the dorsal, 6-70 in. Height at the pectoral, 0-98 in. Length of 

 the pectoral, 0-83 in.* 



* Peters describes the following African species: — 



1. "Anguilla lahiata, flavo-viridis, nujro-marmorata, subtus sordide alha; oculo 

 mediocri, rostro ohtuso; labiis crassis laiis; dentibus in laterihus per series 

 iernas vel quaternas dis2^ositis; pinnce pectorales in medio inter rostri apicem et 

 jnnnam dorsi imsHce. — Tette, Boror." 



2. " Anguilla macrophthalma, exflavo virescens, ftisco-viride marmorata, in lateribus 

 aurea, snbUcs alha; puma: piectorales nigrce; pinnae ani et dorsi alha in mar- 

 gine nigro-virides ; oculi 2}ermagni cenei; rostrum acutum, maxilla infcHore 

 2)rominente, denies in lateribus uniseriales; rictus parvus oados non excedens; 

 pinme 2'>ectorales sexta pa7-te remotiores a pinna dorsali quani a rostri apice. 

 —Tette." 



3. " Anguilla virescens, fusco-viridis, in lateribus viridi-fiavescens, subtm alba; 

 rostro obtuso; jiinnce pectorales et anali ritbescentes ; 2>in7ias 2'ectorales dujplb 

 remotiores a pinna dorsali quarii ab a2nce rostri. — Boror." 



4. " Anguilla mosambica, siq^ra fusco-viridis, in lateribus ex viridi Jlavescens, subtus 



G 



