NO. 1 fraser: hydroids 25 



commonly but one bud to a zooid, but often two, seldom more. Occa- 

 sionally a bud is borne directly on the stolon. 



Other zooids. — None observed. No spines. 



Distribution. — Santa Elena Bay, 8-12 fathoms. 



The protection given by the ribbing of the shell makes the usual 

 calcareous deposits on the stolon unnecessary. 



Family PennaHdac 



Genus PENNARIA 

 Pennaria tiarella McCrady 



Pennaria tiarella McCrady^ Gymnoph. of Charleston Har., 1859, p. 51. 

 Fraser, Beaufort Hyd., 1912, p. 355. 



Distribution. — North shore, Wenman Island, low tide; Post Office 

 Bay, 12-15 fathoms; Santa Elena Bay, 5-12 fathoms; San Francisco 

 Bay, 2 fathoms; Port Culebra, low tide. 



Family Gladocorynidae 



Genus CLADOCORYNE 



Gladyocoryne pelagica Allman 



Cladocoryne pelagica Allman^ Linn. Soc. Jour., 1876, p. 255. 



Distribution. — Braithwaite Bay, on coral at low tide; Santa Elena 

 Bay, 10-12 fathoms. 



Family Tubularidae 



Genus TUBULARIA 



Tubularia sp. 



Trophosome. — Several young tubularians were scattered over a 

 gastropod shell, none of them more than 2 mm. high and most of them 

 less than 1.5 mm. The light-colored perisarc is heavy enough to give the 

 zooid a rigid appearance ; it is smooth and ends abruptly some short 

 distance below the base of the hydranth, the exposed portion being much 

 more slender than the portion within the perisarc. The basal tentacles 

 are 14 or less and the oral tentacles 10 or less in number. 



