2. DDELLOSTOMA. 511 



tab. 28; Nilss. Skand. Faiai. Fisk. p. 750; VaiTell, Brit. Fish. 



;3rd edit. i. p. 12 ; Kriiycr, Dunm. Fish-, p. 1008 ; Oni;/, Chondropt. 



p. 147; Stee/isfruj), (Ffrcrs. Dansk. Vid. Sclsk. Flirhandl. 1804, p. 2-ii. 

 Sleepmarken, Gtuuier, Trondhj. Ilandl. ii. p. 2oO, tab. 3. 

 I'ihral, Kalm, Resa, i. p. 100. 

 Hvidaal, Strom, Simdmor, p. 287. 

 Glutinous Hag-, Pennant, Brit. Zool. iv. p. .33, pi. 20. fi". 15, or, 



edit. 1812, iii. p. 109. r i c > j 



Gastrobranciius crecus, Bl. Ausl. Fisch. xii. p. (id, taf. 413 ; Bl. Schn. 



p. 534, tab. 104 ; Lacep. i. p. 525 ; Yarr. Brit. Fish. 2ud edit. ii. 



p. 612. 

 Mj'xine caeca, Blainv. Faun. Fr. ii. p. 2, tab. 1 a. 



liniosa, Girard, Proc. Ac. Nat. So. Philad. 1858, p. 223. 



Borer, Couch, Fish. Brit. Isl. iv. p. 408, pi. 248. 



Eight or nine rather slender teeth in each of the two series ; the 

 two foremost strongest, and more confluent at the base than the 

 others. 



Coasts of Europe and North America. 



a. Adult. Firth of Forth. Presented by — Woodfall, Esq. 



b. Adult. Newcastle. Presented by Mr. Adamson. 



c. d. Several examples. 



2. Myxine affinis. 



Eleven rather stout teeth in each of the two series, the two fore- 

 most strongest and more confluent at the base than the others. 

 Body considerably more slender than that of M. qhdinosa. 



Hah. ? 



a. Twelve inches long. Presented by Dr. A. Giinther. 



3. Myxine australis. 

 Jmyns, Vuy. Beagle, Fish. p. 159. 

 Ten or eleven slender teeth in each of the two series, the three 

 foremost are strongest and confluent at the base, the other teeth 

 remaining sejjarate ; in the second series the two innermost teeth 

 are confluent at the base. 



Southern coasts of South America. 



a, h-d. Adult and half-grown. Sandy Point. Collected by Dr. 



Cunningham. 

 e-f. Half-grown. Tyssen Islands. Collected by Dr. Cunningham. 



^. BDELLOSTOMA. 



Ileptatrema, Dumeril. 

 Bdellostoma, Miiller. 



Six or more external branchial apertures on each side, each lead- 

 ing, by a separate duct, to a branchial sac. 

 Southern coasts of the southern hemisphere. 



1. Bdellostoma cirrhatum. 



Petromyzou cirrhatus, ( Forster) Bl. Sihn. p. 532 ; For.st. Dcscript. 

 Anim. ed. Licht. p. 112. 



