490 REPORT OF COMMISSIONER OP FISH AND FISHERIES. 



megalophthalma (p. 336) are every where common, burrowing in the sand. 

 The Cancer irroratus (p. 338) and Flatyonichus ocellatus (p. 338) are rather 

 common at and just below low- water mark. The Hippa talpoida (p. 338, 

 Plate II, fig. 5) is occasionally found, and the young sometimes occur 

 in large numbers, burrowing in the sand at low- water mark. The com- 

 mon shrimp, Crangon vulgaris, (p. 339, Plate III, fig. 10,) is usually abund- 

 ant where there are sheltered sandy flats. 



The Annelids are less numerous than on the sandy shores of the 

 sounds, but such as do occur are mostly of the same species. One of 

 the most interesting is the Nerine agilis, (p. 346,) which is very remark- 

 able for the rapidity with which it burrows in the sand. 



The MoUusks are few in number. One of the most abundant of the 

 Gastropods is the Lunatia lieros, (p. 353, Plate XXIII, figs. 133-136,) 

 which burrows just beneath the surface of the sand, at and below low- 

 water mark. The Neverita dupUcata (p. 351, Plate XXIII, fig. 130) is 

 also occasionally found, but is much less abundant than in the bays. 



Of Lamellibranchs there are but few species that can maintain them- 

 selves in such situations. Among these the " long clam," Mya arenaria, 

 (p. 463,) the ^' razor-shell," Ensatella Americana, (p. 356,) and the "surf- 

 clam," Mactra solidissima, (p. 358,) are the most common. 



Very few, if any, Eadiates are to be found on the exposed sandy shores, 

 unless thrown up by the waves from deeper water. In places that are 

 somewhat protected from the violence of the surf, the Leptosynapta Gi- 

 rardii (p. 361, Plate XXXY, figs. 265, 266) is often found burrowing in 

 the sand at low- water mark. Sometimes, in similar places, the " sand- 

 dollar," Ecliinaraclmius parma, (p. 362, Plate XXXY, fig. 267,) is found 

 in large numbers at extreme low-water mark. 



There are no Hydroids and Polyps that properly inhabit such shores. 



List of species inliahiting the sandy shores of the open coast. 



ARTICULATA. 



Crustacea, 



Pasre. 



Ocypoda arenaria, (young). . . 337 



Cancer irroratus 400 



Cancer borealis 486 



Platyonichus ocellatus 490 



Hippa talpoida 490 



Eupagurus polUcaris 313 



Annelids. 



Page. 



Crangon vulgaris 490 



Orchestia agilis 336 



Talorchestia longicoruis 489 



T. megalophthalma 489 



Unciola irrorata 340 



Idotea ca3ca 340 



Page. 



Nereis virens 317 



N. limbata 318 



IlhynchoboUis Americauus.. 342 



Page. 



Scolecolepis viridis 345 



Olymenelhi torquata 343 



Aini)hitrite ornata ... 320 



!Nerine agilis 490 ' Polycirrus eximius 320 



