Classification of the Blennioid Fishes. 



267 



in contact, narrow, especially the latter, which is not deve- 

 loped below the base of the pectoral fin ; radials elongate, 

 4 in number (fig. 1, A) ; pelvic bones short, firmly attached 

 at the cleithral symphysis. 



Principal genera : Ophioblennius, ISlennius, Salarias^ 

 Andamia, ChasmodeSy Petroscirtes, Xiphasia, from tropical 

 and temperate seas. 



In Ophiohlennius wehbii I find that the comb-like outer 

 series of teeth is developed, althongli very small ; this genus 

 diflers from other Blenniidse in tlie presence of syniphysial 

 canines and of more than one lateral canine in tiie lower jaw. 

 Xiphasia has the iiead, mouth, teeth, gill-openings, &c. of 

 Petroscirtes, but diflfers from that genus in the very long tail 

 and greatly increased number of fin-rays and vertebrae. 



Fig. 1. 



A. B. 



Pectoral arcli of A. Bhnnius bufo and B. Anarrhichas lupus. 



pfte, post-temporal ; scl, supra-cleithrum ; d, cleithrum ; pel, postT 

 cleithrum ; sc, hypercoracoid ; cor, hypocoracoid ; r, radials. 



Family 2. Anarrhichadidse *. 

 Body naked or with vestigial scales. Dorsal fin formed 



* Since tliis paper was written Dr. Gill lias issued a memoir entitled 

 ^' Notes on the Structure and Habits of the Wolffishes" (Proc. U.S. Nat. 

 Mus. xxxix. 1911, pp. 157-187, pis. xvii.-sxviii.j — a valuable account 

 of the fishes of this family. 



19* 



