498 EEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



entirely covering* and destroying- the algae. The large openings (oscula) 

 are irregularly scattered over the surface and quite unequal in size, 

 varying from less than .05 to .10 of an inch or more in diameter. The 

 texture is rather close when dried, showing a finely reticulated texture 

 at the surface. This appears to belong to the genus Tedania. Another 

 species, apparently of the same genus, occurs with the last, and has the 

 same habits, but. its color is pale buff, or yellowish white, and its text- 

 ure is much firmer and more compact. Another species, occurring with 

 the last two on the Phyllophora, at Watch Hill, forms small, irregular, 

 deep yellow masses, of a soft and somewhat gelatinous consistency. 

 Foraminifera of several species are abundant, attached to the fronds 

 of the red algae, to the rough integument of Ascidians, to stones, shells, 

 worm-tubes, &c, but they have not yet been identified. 



liist of species inhabiting the stony and rocky bottoms on the open coast. 



ARTICULATA. 



Crustacea. 



Page. 



Cancer irroratus 493 



C. borealis 493 



Libinia canaliculata v 339 



Eupagurus longicarpus 313 



E. Bernhardus 501 



Homarus Americanus 492 



Crangon vulgaris 493 



Hippolyte pusiola 493 



Pandalas annulicornis 493 



Lysianassinae, (one species) . . 431 

 Pontogeneia inermis 452 



Page. 



Mcera levis 315 



Amphithoe maculata 493 



Unciola irrorata 493 



Cerapus rubricornis 565 



Podocerus fucicola 493 



Podocerus, species 494 



Caprella, species 494 



Idotea irrorata . . 494 



I. phosphorea 316 



Erichsonia filiformis 494 



Balanus crenatus 396 



Annelids. 



Page. 



Lepidonotus squamatus 320 



L. Augustus 494 



Harmothoe imbricata 321 



Phyllodoce gracilis 494 



P. catenula ,, 494 



Eumidia Americana = 494 



Autolytus cornutus 494' 



Autolytus, species - 494 



Nereis pelagica . 319 



K fucata 494 



Lumbriconereis fragilis 501 



Page. 



Clymenella torquata 343 



Naraganseta coralii 494 



Sabellaria vulgaris 321 



Polycirrus eximius 320 



Nicolea simplex 494 



Potamilla oculifera 322 



Sabella microphthalma 323 



Spirorbis spirillum 323 



S. porrecta ? 504 



Serpula dianthus . . 322 



Nemerteans and Planarians. 



Nemertes, species 



Page. 

 . 505 



Leptoplana folium 



Page. 



. 487 



