112 TELEOSTEI: ACANTHOPTERI. — XX. 



145. STROMATEUS (Artcdi) Linnaeus, (arpwuartvi, ancient 



name.) 



«. Pelvis pndin;: in a small spine; V. wantinp. 

 b. 1). and A. littlu fakate, thtnr lobes shorter than head; a row of con- 

 spicuous ])orfs aliiii^c side of back above lateral line, (/'orotwtus Gill.) 



292. S. triacanthus Peck. Dollau-fisii. Buttkk-kish. 

 Bliiisli; silvery below; body oval, compressed; snout very blunt. 

 Head 4; depth 2j. D. 111,45. A. HI, 37. L. 10. Maine to 

 Florida, common N. (rpis, three ; oKovBa, spine.) 



bb. D. and A. falcate, their lobes longer than head ; back without evident 

 pores. {Rhombus Lac(^'p6de.) 



293. S. paru L. Hahvest-fish. Bluish, yellow below; body 

 almost round, with vertical snout. Head 4 ; depth l^. I). IH, 45. 

 A. II, 43. L. 8. Cape Cod to S. A., rare N. (Brazilian name.) 



Family LIX. CORYPH^NID^. (The Dolphins.) 



Body elongate, compressed, with small, cycloid scales; mouth 

 wide, with moderate teeth ; operdes entire ; occipital crest extend- 

 ing well forward, Ix^coming very high in the adult ^. D. contin- 

 uous from nape nearly to C, without distinct spines; A. similar, 

 shorter; V. I, 5 ; P. short; C. widely forked. Gill openings wide. 

 No pseudobr.anchia; nor air-bladder. Vertebrjc more than 24. One 

 penus, with 2 or 8 species ; large vigorous fishes of the open seas. 

 The bright coloration grows pale at death, but the accounts of this 

 change have been niucli exaggerated. 



146. CORYPH^NA (Artedi) Linna>us. (>tc5pvy, helmet ; 

 (fiiHva), to show.) 



294. C. hippuruB L. Common Dolphin. Dorado. Very 

 bright (ilivc-grecn, with small round blue spots; V. inserted slightly 

 behind upper ray of P. Head 4§ ; depth 4^ ; V. 1^ in head ; P. 1^. 

 D. 59 to 63. A. 29. L. 3 to 5 feet. Open sea, N. to Cape Cod, 

 abundant S. (iTTTrof, horse ; oupa, tail.) (Eu.) 



With the Dolphins, we close the series of fishes having Scombroid 

 affinities, and begin the equally important series of PERCI- 

 FOIIMES, those related in some degree to the common Perch. 

 The Perch-like fishes have usually larger and rougher scales than 

 the Scombroids, and the development of tlie sjiinous armature of 

 the fins is in general more pronounced. We begin with one of the 

 most aberrant forms, the small 



Family LX. APHREDODERID^ (The Pirate 



I'lKi III S.) 



Body oblong, with thick, de|)ressed head and compressed tail; 

 mouth moderate, the chin projecting ; teeth in villiform bands on 



