TROCTONOTIDJE. 07 



Genus BORNELLA, Gray. 



Body elongated, convex, sides compressed. Tentacles 

 clavate, laminated; back with three tufts of simple and 

 branched tentacular appendages. Gills plumose at their 

 bases. 



Ex. B. Adamsii, Gray, pi. Go, fig. 2. 



The oral appendages in this tropical genus are stellate, 

 and, besides the digitate branchial appendages, there are 

 little tufts of gills ; the foot is linear and grooved, and the 

 animals are pale pink, beautifully striped with vermillion. 

 The species were found on floating weed in the Straits of 

 Sunda and on the Coast of Borneo. 



Species of Bornella. 

 Adamsii, Gray. digitata, Adams and Reeve. 



Fam. PKOCTONOTID.E. 



Tongue broad; teeth, many in each cross series; jaws 

 horny, strong. Tentacles simple, linear, not sheathed. Gills 

 superficial, fusiform, on the sides of the back. Vent dorsal. 



The animals comprising this family are provided with 

 horny jaws; their tentacles, moreover, are linear and without 

 sheaths, and the position of the vent is dorsal. They 

 appear to be principally littoral in their habits, feeding on 

 the sea-weed, which occurs in many places in extensive 

 banks along the shore. 



