1888.] NATURAL SCIENCES OF PHILADELPHIA. 333 



Scapharca transversa. 



Area pexata. Common. 



Area transversa. 



Mytilus edulis. Abundant. 



Modiola plicatula. Exceedingly abundant. 



Pecten irradians. Common. 



Ano7nia glabra. Abundant. 



Ostrea virginiana. Exceedingly abundant. 



Teredo navalis. 

 Of Crustacea the following were observed : 



Callineefes hastatus. 

 Platyoniehus ocellatus. 



Cancer irroratus. 



Ocypoda arenaria. 



Gelashnus pugnax. 



Gelasinms pugilator. 

 LihUiia canaliculata. 

 Panop)eus Sayi. 

 Pinnotheres ostreum. 



Eupagurus poUicaris. 



Eupagurus longicarpus. 



Hijjpa talpoldea. 



Gebia affinis. 



Palaemonetes vulgaris. 



Orchestia jyahtstris. 



Or chest la agilis. 



Talorehestia longirostris. 



Talorchestia, maerophthalma. 



Gaw.marus ornatus. 



Unciola irrorata. 



Caprella geometrica. 



Erichsonia attemiata. 



Cirolana concharum. 



Bopyrus palaemoneticola. 



Livoniea ovalis. 



Lepas Jaseicularis. 



Lepas anatifera. 



Lirmdus pohjphemus. 



The Turret Spider on Coffin's Beach. — Dr. Henry C. McCook 

 remarked that he had spent July and August, 1888, at Annisquam, 

 Mass., a port of Cape Ann at the mouth of the Squam river where it 

 enters into Ipswich Bay. The eastern shore of the bay opposite 

 Annisquam consists in part of a stretch of sand hills, known as 

 Coffin's beach. The sand is of a beautiful white color and is massed 

 at places in elevations of considerable height, constituting what is 

 known as the " sand hill, " or '' the dunes. " The fragrant bay bush 

 grows in clumps along the edges and summits of these irregular sand 

 elevations, and this is intermingled with patches of tough grass. 



