424 SYNOPSIS. 



Sp. 252. G. ccBCus. Myxine or Glutinous Hag. Body elon- 

 gated, vermiform, compressed and tapering behind ; eyes 

 wanting ; an obscure fin commencing behind the middle, 

 continued round the tail and along a portion of the belly ; 

 skin naked and covered with a thick mucous secretion ; 

 colour of the back dark brown, lighter on the sides, yel- 

 lowish brown beneath. — Block, pt, xii. pi. 413 ; Peww. Brit. 

 ZooL, iii. p. 109 ; Yarr. Brit. Fish., ii. 612. Myxine glut- 

 tinosa, Linn. 

 Gen. CXXV. Amphioxus. Body compressed and pointed 



at both ends ; a single dorsal extending the whole length of the 



back and passing round the tail ; no jDCctoral or ventral fins ; 



mouth narrow, elongated, the margin furnished with a row of 



slender filaments. 



Sp. 253. A. lanceolatus. The Lancelot. Head pointed, 

 withotit any trace of eyes ; nose produosd ; muscles along 

 the sides diverging obliquely backwards from a lateral line 

 near the centre ; tail pointed ; surface of the body smooth. 

 Yarr. Brit. Fish., ii. p. 618; Goodair, Trans. Roy. Soc. 

 Udin., XV. p. 247 ; Couch, Mag. Nat. Hist, 1 838. Limax 

 lanceolatus, Pallas, Spic. Zool., x. p. 19, t. 1, fig. 11. 



FINIS. 



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