5. PETROSCIRTKS. 229 



in the iijjper jaw, behind the series). Head sometimes "with tentacles. 

 Gill-opening closed beneath, and reduced to a small fissure above the 

 root of the pectoral. Branchiostcgals six. 

 Atlantic coasts of temperate North America. 



1. Chasmodes boscianus. 



IBlennius bosquianus, Lacep. ii. pi. 13. fig. 1. 



pholis, Mitch. Phil. Sf Lit. Trans. Netc York, i. p. 374. 



Chasmodes boscianus, Cttv. Sf Val. xi. p. 295. pi. 327 ; Dekmj, New 

 York Fauna, Fishes, p. 151. pi. 24. fig. 73. 



B. 6. D. 29. A. 19. V. 2. 



The mouth is cleft to below the posterior margin of the eye ; snout 

 slightly produced, with the upper profile oblique ; canine teeth none. 

 The dorsal is not emarginate, and continuous with the caudal. A 

 very small tentacle above the orbit. Greyish, marbled -^ath brown. 



Atlantic coasts of North America. 



2. Chasmodes quadrifasciatas. 



Pholis quadrifasciatas. Wood, Journ. Acad. Nat. Sc. Fhilad. iv. p. 282 



pi. 17. fig. 1. 

 Chasmodes quadrifasciatus, Cue, 8f Val. xi. p. 298. 



D. 27. A. 15. 



The mouth is cleft to below the posterior margin of the orbit ; 

 snout slightly produced, with the upper profile oblique. A small 

 canine tooth in the upper jaw. Body with four or five brown cross- 

 bands ; a series of yellowish spots along the base of the anal tin. 

 ( Wood.) 



3. Chasmodes novem-lineatus. 



Pholis novem-lineatus, Wood, Journ. Acad. Nut. Sc. Fhilad. iv. p. 280. 

 Chasmodes novem-lineatus, Ctiv. df Val. xi. p. 299. 



D. 30. A. 20. 



Snout obtuse, with the anterior profile subvertieal. The doi-sal 

 fin commences on the neck and extends on to the caiidal. Brown : 

 sides of the head dotted with dark blue ; a blacldsh spot between 

 the first and second dorsal rays. ( Wood.) 



Port of Charleston. 



5. PETROSCIRTES*. 



Petroscirtes, Fiipp. Atl. Fische, p. 110, and N. W. Fische, p. 134. 



Blennechis, Cur. ^- Val. xi. p. 279. 



Aspidontus, (G. Cut:) Quoy ^ Gaim. Voij. Astrol. Zool. iii. p. 719. 



Body moderately elongate, naked. Snout generally short or of 



* 1. Blennechis dussumieri, Cuv. tj- Val. A. p. 282. — He de Boiu-bon. 



2. Omobranchus fasciolatus, (Ehrcnh.). — Blennceliisfasciolalus, Ciiv. ij- V(d. 



xi. p. 287.— Bed Sea. 



3. rctroseirtes baiikicri. luchardb. J'cy. iSitlph. Fitlio, p. 130 pi. 41. figs. 8, 0. 



— Hongkong. 



