1854. J 149 



nally margined with black. The lips appear to have had a deeper hue, as also 

 the two cephalic depressions above alluded to. 

 From Monterey, Cal. 



SCOMBERESOCES. 



19. Beloxe exilts, G. The head forms a little more than two sevenths of 

 the entire length, which measures about twelve inches and a half. The body 

 is very slender and exiguous. The head is flattened upon the occiput, and 

 grooved between the eyes. The eye is well developed and its longitudinal di- 

 ameter comprised about eleven times in the length of the side of head; seven 

 times in advance of its anterior rim, and three times backwards of its posterior 

 rim. The anterior portion of anal is more developed than the same part in dor- 

 sal, the posterior extremity of which is but seven tenths of an inch distant from 

 the rudimentary rays of the caudal : the anal does not extend quite as far back. 

 The anterior margin of the latter is situated considerably in advance of the dor- 

 sal, and its base is longer also. The insertion of ventrals is equidistant between 

 the base of caudal fin and the centre of the pupil. The posterior margin of the 

 caudal is emarsiinated. 



D 1C. A 13. C 4. 1. 7. 6. 1. 3. V 6. P 14. 



The scales are quite small, few of which only are preserved on the specimen 

 described. 



B ick deep greenish ; sides and belly rufous with an argentine reflection upon 

 the sides. Pectorals, ventrals, and anal greenish [yellow ; dorsal and caudal 

 greenish grey. 



Fioin Sun Diego, Cal 



BLENNIDjE. 



20. Blexmus gextilis, G. The body is very much compressed and tapering, 

 from head, where deepest, to the base of caudal. The head constitutes the fifth 

 of total length ; the snout is veiy abbreviated and rounded. The greatest depth 

 is about equal to the length of head. The mouth is rather large ; the posterior 

 extremity of upper maxillary reaching a vertical line which would intersect the 

 middle of the pupil. The eye is large and circular, and its diameter contained 

 four times in the length of side of head. A flattened and slender membranous 

 flap is inserted above the eye. Soft portion of dorsal higher than the spiny part; 

 anal much lower than dorsal. Ventrals long and filifoim. Caudal posteriorly 

 rounded, tips of both dorsal and anal reaching its base. The lateral line termi- 

 nates under the eleventh ray of the spiny dorsal. 



1) XII. 17. A 19. C 6. 1. 5. 4. 1. 5* V I. 2. P 12. 



Ground color yellowish-brown. Dorsals, caudal, and pectorals maculated with 

 d.irk purple. Blotches of the same hue may be seen all along the back. Sides 

 of abdomen and head marked with small subquadrangular spots also of dark 

 purple. Upper part of head, snout, ventrals, and anal deep purple. Tips of 

 rays of anal yellowish. 



From Monterey, Cal. 



21. Gunelles ornatuSj G. Body very much compressed, preserving its depth 

 from head to origin of anal, hence gradually diminishing towards the caudal. 

 H^ad small, rounded anteriorly, and contained nine times and a half in the total 

 length. Posterior extremity of upper maxillary extending to a vertical line 

 which would pass slightly behind the anterior margin of the orbit. Eye circular 

 and of medium size ; its diameter being contained about four times in the length 

 or side of head. Dorsal and anal fins very low and united to the caudal. Origin 

 of dorsal immediately behind the base of pectorals. Caudal posteriorly rounded. 

 Origin of anal equidistant between base of pectorals and extremity of caudal. 

 Ventrals reduced to a small spine, inserted immediately in advance of the base 

 of pectorals. 



D 70. A 35. C 2. 1. 8. 8. 1. 1. V [. P 12. 



The scales are very minute ; the lateral is not discernible. 



Ground color yellowish; back marked with thirteen roundish spots of blackish 



