242 BLENNIID^. 



the total length, the length of the head six times and two-thirds. 

 A crest on the head ; a filiform tentacle at the nostril, above the orbit, 

 and on each side of the neck, that above the eye being the longest. 

 Canine teeth none. The dorsal fin becomes gradually somewhat 

 higher from the commencement to the posterior third of the soft 

 portion, where it is as high as the body beneath ; it is slightly con- 

 tinuous with the caudal. The pectoral extends nearly to the vent. 

 Colours ? 

 Hab. ? 



a. Discoloured. From the Haslar Collection. 



lines. 



Total length 37 



Height of the body 6g 



Length of the head 5| 



4. Salarias tridactylus. 



Blemiius tridactylus, Bl. Schn. p. 176. 



amphibius, Walbamn, Artedi, iii. p. 187. 



saliens, Lacep. ii. pp. 458, 479. 



Salarias alticus. Cm: 8f Val. xi. p. 337. 



Blennius gobioides, Forst. Descript. Anim. cur. Lichterist, p. 283, 



^■'i^o- A. 26-27. V.1/3. 



The height of the body is one-ninth or one-tenth of the total 

 length, the length of the head one-sixth. A crest on the head in 

 the male ; a very small simple tentacle above the orbit. The dorsal 

 fin is slightly emarginate, higher than the body in specimens with a 

 crest on the head, one-half lower in those without a crest ; it does not 

 extend on to the caudal ; the upper part of the rays free. Canine 

 teeth small. Bluish, irregularly dotted and spotted with whitish ; 

 vertical fins blackish ; dorsal with pale oblique streaks. 



East Indian Ai'chipelago. 



Salarias tetradactylus (Bleek. Biliton, iv. p. 228) appears to be 

 closely allied to the above species. 



b. No crest on the head. 



5. Salarias atlanticus. 



Punaru, Marcgr. p. 165. 



Salarias atlanticus, Cuv. Sf Val. xi. p. 321 ; Jenyns, Zool. Beagle, Fishes, 

 p. 86 ; Lowe, Trans. Zool. Soc. ii. p. 185 & iii. p. 9. 



D. 33-34, A. 24. Vert. 12/22. 



The height of the body is contained five times and a half in the 

 total length, the length of the head six times. Anterior jirofile ob- 

 lique ; the lower canine teeth are exceedingly large, and can be 

 received in a cavity of the palate. Supraorbital tentacle well deve- 

 loped, slender ; five or six short tentacles at each nostril, those on 

 the neck very short ; crest none. The dorsal fin is not notched ; it 



