334 



REPOKT 



OMMISSIONER OF FISH AND FISHERIES. 



Acalejyhs. 



Page. 



Obelia commissuralis 327 



O. pyriformis 390 



O. diapliana 327 



O. geniculata 407 



Cl^^tia Johnstoui 408 



Orthopyxis caliculata 408 



Platypyxis cylindrica 408 



Campanularia volubilis 408 



C. flexuosa 327 



Lafoea calcarata 408 



Page. 



Haleciiim gracile 328 



408 



Sertularia argeutea. 



S. pumila 



Bougaiuvillia superciliaris 



Margelis Carolinensis 



Clava leptostyla 



Peuiiaria tiarella 



Hybocodon prolifer 



Hydractiuia polyclina 



327 

 328 



328 

 327 

 328 

 328 



Polyps. 



Page. 



Metridium marginatum 329 



Sagartia leucoleua 329 



S. modesta 330 



Halocampa producta 



Astraugia Dante 



Page. 

 330 

 329 



PROTOZOA. 



Sponges. 



Grantia ciliata 



Leucosolenia botryoides (!) . 

 Halichondria, sp 



Page. 

 330 

 391 



330 



Tedania, sp 

 Eenieria, sp 



Page. 

 330 

 330 



II. — 2. FAUNA OF THE SANDY SHORES OF THE BAYS AND SOUNDS. 



These sandy sliores vary considerably in character according to their 

 situations and composition. In the more exposed positions the beaches 

 of fine loose sand differ but little in character from those that prevail 

 so extensively on the ocean shores, from Cape Cod to North Florida. 

 In more sheltered situations there is generally more or less mud mixed 

 with the sand, which often forms shores with a very gentle slope, run- 

 ning down to broad flats, bare at low-water ; such flats of sandy mud 

 are the favorite homes of large numbers of burrowing creatures ; but 

 even on the exposed beaches of loose siliceous sand, which are completely 

 torn up and remodeled by every storm, there are still to be found many 

 kinds of animals perfectly adapted to such conditions, finding there 

 their j)roper homes. In other cases there is more or less gravel and 

 pebbles mixed with the sand, which, under some conditions of expos- 

 ure, produce a firm and compact deposit, admirably adapted to the 

 tastes and habits of certain tube-dwelling and burrowing creatures. In 

 other places, especially in sandy coves or other sheltered situations, the 

 sandy flats are partly covered by tufts and patches of eel-grass, and 



