410 APPENDIX. 



minute ; a short spine before the anal fin, which is 

 placed immediately beneath the second dorsal. 



Scombro. Rondel, p. 235. ? 



Inhabits the coasts of Sicily. 



First dorsal 9 ; second dorsal 12 ; finlets 6: length of the specimen examined 

 nearly 1 foot. Differs from the Scomber maculatus of Couch* in having 

 an obtuse rounded plate above the operculum and pectoral fin, and in 

 being entireh' unspotted on the sides of the body and belly. On the other 

 hand, it differs from the Scomber colias of Cuvier f in having six instead 

 of five spurious fins %, while the ventral fin is exactly under the second 

 dorsal, not, as in Colias, half-way behind it. The two last rays of the an- 

 terior dorsal are partly hid in a groove; the lower jaw is very slightly 

 longer than the upper ;' and all the scales are very minute. 



SCOMBER gracilis. 



Body not much broader than the head ; anal fin placed 

 half-way behind the second dorsal ; finlets six above 

 and below_, the two last approximating^ and with two 

 others on each side the base of the caudal fin. 



Inhabits the coasts of Sicily. 



First dorsal 9 ; the last remote and minute and nearly hid ; 

 the three first approximating; second dorsal 12; anal 12; 

 the first minute ; vent opposite the middle of the second 

 dorsal. On each side of the termination of the tail are two 

 finlets, one under the other, placed horizontally in the same 

 situation as the caruiated processes occupy ua certain other 

 fish ; sides of the back marked with simply angular bands 

 pointing towards the tail ; the sides silvery and unspotted; all 

 the scales minute ; the bony plate above the operculum is 

 obtuse, and is nearer to the top of the head than to the pectoral 

 fin. The S. macropthalmus of Rafinesque is closely allied 

 to this, which has the eyes also very large, but it differs 

 in wanting the supplementary finlets on the sides of the tail, 

 and ua not having the same number of finlets on the upper 

 and under margin. The three first rays in the dorsal and anal 

 fins are close together, and the space between the others is 

 gradually widened as they recede from the head. 



* Loudon's ^Magazineof N. H. pi. 22. fig. 8. " Spurious fins six above and 

 below :" but the figure only represents five. 



f This is clearly not the' Colia of Rondeletius. See his description and 

 figure, p. 2o5. 



X No mention is made of these fins by Cuvier, but the figure represents 

 onlv five. 



