450 Contribution toicai'ds a hiowledye of the Crenilabri. 



fin, its soft portion one-third higher than the spinous ; a memhranous 

 filament from near the point of each spinous ray. Anal fin begins 

 nearly in a line with the seventeenth spinous ray of dorsal fin, its 

 distance from the caudal fin equal to its entire length. Pectoral 

 fin rounded, more than half the length of head, originates a very 

 little in advance of dorsal fin, and about one-fourth of its length in 

 advance of ventral fin, placed low, its distance from the latter 

 equal to its own base. Ventral scale about one-fourth the length 

 of ventral fin. Caudal fin rounded. The central rays rather dis- 

 proportionately long, one-third of its base thickly covered with scales, 

 of which there are none in the dorsal and anal fins. 



Colour of the specimen in spirits, very pale greenish brown over 

 the back, olive green on the sides, becoming paler beneath ; sides 

 with darker longitudinal bands throughout ; from dorsal to ventral 

 profile above the lateral line, they take its form, below it they are 

 straight. Three blackish spots, one on the pre-opercle behind, and 

 rather below the centre of the eye, a second on the body at the base 

 of the caudal fin, and at its lowermost portion, and the third at the 

 base of the last ray of the dorsal fin. 



It is perhaps worthy of particular mention, that the specimens 

 under consideration have been critically compared with Risso's 

 descriptions (ed. 1826) of all the numerous species of Crenilabri, 

 and also with the Labri, in consequence of the pre-opercle being 

 but obscurely denticulated, inhabiting the Mediterranean, as well 

 as with all those described under the genera Lutjanus and Labrus, 

 in the general works of Bloch and Schneider. 



Explanation of Plates. 

 PL XIII. Crenilabrus multidentatus, natural size. 

 XIV. C ■ microstoma, a. scale nat. size. 



