AXGUILLID.E. 



Breed in the deep sea, where they undergo very marked metamorphoses 

 (larval forms known as Lejjtocephalus). In Africa, confined to the 

 rivers flowing into the Mediterranean and the North Atlantic and 

 Indian Oceans. 



Si/noiJsis of the Species. 



I. Dorsal originating well in advance of Aont. 

 Mouth not extending beyond eye, or, rarely, extending 



beyond ; teeth on sides of jaws in 2 (yonng) to 4 



series, not separated by a longitudinal groove or 



interspace 1. A. vulgaris, Turt., p. 4. 



Month extending beyond eye ; teeth on sides of jaws 



in 3 (yonng) to G series, not separated by a groove [p. (i. 



or interspace 2. A. mossamhica, Peters, 



Month extending to below posterior border of eye, or 



beyond ; teeth on sides of jaws in 2 series, 



separated by a longitudinal groove or intersi)aco 



(young), or in a single or double series with an 



inner detached series of minute, sometimes very [p. 7. 



indistinct teeth 3. A. hengdensis, Gray, 



II. Dorsal originating above or slightly in advance 

 of vent ; teeth on sides of jaws in 4 (young) 

 to 10 scries 4. J. atwira?!,?, liich., p.O. 



I'is. 2. 



a. li. c. d. 



Dentition of upper jaw and palate in adult speci]iiens of : 



a. A. vulgaris ; b. A . mossamhica ; c. A. hengahnsis ; d. A. nitstralis. 



Tlie bands of teeth are narrower in young specimens. 



1. AXGUJLLA VULGARIS*. 



Mara'tia angtiiUd, Linn. Syst. Nat. i. p. 42G (17G(i). 



Angmlla vulgaris, Turton, Brit. Faun. p. 87 (1807) ; Giiuth. Petherick's Trav. ii. 

 p. 266 (1869), and Cat. Fi.h. viii. p. 29 (1870) ; Playf. & Letourn. Ann. & 

 Mag. N.H. (4) viii. 1871, p. 393 ; Bouleng. Fish. Nile, p. 402, fig. (1907). 



* For tliis and the other species of the genus, only the names applied to African 

 specimens or having a. direct bearing on their nomenclature are quoted, and the list of 

 specimens is restricted to those of African origin. 



