3. BLENNIUS. 227 



of the head four times and two-thirds. The snout is slightly pro- 

 duced, once and a half the length of the diameter of the eye. A 

 ciirved tooth uf moderate size in both jaws. Orbital tentacle none ; 

 the interorbital space appears quite flat, if covered with the skin ; 

 nape of the neck with a fleshy protuberance. The dorsal fin begins 

 in the vertical from the extremity of the operculum, is very distinctly 

 notched, and not continuous with the caudal ; the spines are flexible. 

 Greenish-oHve, with irregular blackish spots ; a metallic spot on the 

 temple (during life). 



Mediterranean. Atlantic coasts of Europe. Shores of the Ger- 

 man Ocean. 



a. Adult : skin. Frith of Forth. 



b. Young. Scotland. 



c-g. Adult and half- grown. Wales. Presented by Mrs. Gray. 

 h-i, Jc-l. Adult and young. South Wales. Presented by J. Stokes, 



Esq. 

 m. Half-grown. Polperro. Presented by J. Couch, Esq. 

 n. Large specimen. Falmouth. Pui-chased. 

 o,p, q, r-s. Many specimens. Falmouth. Purchased. 

 t-v. Adult and half-groAvn : stuflfed and skins. Plymouth. 

 w, X. Adult. South Devonshire. Museum Leach. 

 y, z. Adult and young. English coast. 

 a. Adult. Isle of Bourbon (?). Purchased of M. Parzudaki. 

 /}-y, ^-e, C—n, 0, t, *:. Adult and half-grown. 

 X-/J. Adult : skins. 



V. Adult : female skeleton. Wales. Presented by !Mrs. Gray, 

 o. Adult: skeleton. Purchased. 



Slceleton. — This species differs somewhat from B. gattorugine and 

 B. ocellaris in the form of its cranium, which is more elongate and 

 less compressed. The longitudinal portion of the crest extends nearly 

 the whole length of the crown of the head, the lateral portions being 

 short and nearly rectangular to the former. The interorbital space 

 is slightly concave, and half as wide as the orbit. Lower jaw longer 

 than broad. In the other points, the skeleton does not differ essen- 

 tially from that of B. gattorugine. There are thirteen abdominal and 

 twenty-five caudal vertebrae, the length of the former portion being 

 to that of the caudal as 1 : 1-65. 



36. Blennius trigloides. 



Blennius trigloides, Ciw. ^- Fal. xi. p. 228 ; Gtiichen. Explor, Ahjdr. 



Poiss. p. 71 ; Bottap. Faun. Ital. Pesri, cum fig. 

 Pholis laevis, Lowe in Trans. Zool. Soc. ii. p. 185, iii. p. 9, and Proc. 



Zool. Soc. 1839, p. 83. 

 trigloides, Lowe in Proc. Zool, Soc. 1843, p. 87. 



D. llU. A. 18. 



The height of the body is five times and a half in the total length, 

 the length of the head four times and a half. Snout with the an- 



u'2 



