550 SYNGNATHID^E. BRANCHIOSTOMATIDJE. 



a>-l\ Purchased, April 28, 1870. 



m l -r l . Received in exchange, June 10, 1870. 



s l -y l . Purchased, March 30, 1872. 



81. Hippocampus ramuloms, Leach. Branched Sea-horse. 

 Hob. Coast of France. 



Family PETROMYZONTID^. 



Genus PETROMYZON. 



82. Petromyzon marinus, Linn. Sea-Lamprey. 

 Hab. British Seas. 



a. Purchased, April 12, 1872. 



83. Petromyzon fluviatilis, Linn. River-Lamprey. 

 Hab. British rivers. 



Family BRANCHIOSTOMATtD^E. 



Genus BRANCHIOSTOMA. 



84. Branchiostoma lanceolatum (Pallas). Lancelet. 

 Hab. Coast of Italy. 



o-r. Presented by the Director of the Zoological Station, 

 Naples, Nov. 14, 1874. 



