ADDITIONAL MEilBEKS. DESCRIPTION OF NATICA HELLICOIDES. 69 



bounds they canuot pass, in tlieir reproduction, preservation, and 

 annihilation. He investigates their harmonious connexion, their 

 wonderful organization and po^yers, their uses, as they conduce to 

 supply his wants, reheve his cares, assuage his disease, embellish his 

 life, or add to his happiness. In their pursuit he finds health, con- 

 tentment, and peace. To him, the fertile vale, the barren heath, the 

 cloud-capped hills, and the dry and arid rock, fui'nish objects for his 

 stud}- and delight ; and with a mind influenced by such feelings, he is 

 ready to exclaim, 



" These are thy works, God, and they iiroclaim thy praise." 



Lid of Memiers, continued from p. 33. 



J. S. Donaldson, Esq. of Cheswick, . . May 6. 1835. 



Eev. M. Dods, Belford, .... 



Eev. W. B. Cunningham of Prestonpans, . 



Sir David Erskine of Dry burgh, . . Sept. 16. 



Description of Natica helicoides, a neio British Shell. By Dr 

 GrEORGE Johnston. 



Natica helicoides. 



Shell ovato-conical, smooth, white, imma-culate, covered with a yellow- 

 ish epidermis ; whorls 5, rounded, separated by a channelled 

 sutiu-e, the spire produced and rather obtuse ; aperture pure 

 wliite, with a small fissure on the pillar. Length yVths ; breadth 

 scarcely i^-^ths. 



Sal. Berwick Bay. 



Ohs. This new species was found in the refuse of a fishing-boat. "V\Tien 

 the epidermis is removed, the whorls appear to be finely striolate 

 in a spiral direction. Animal imknown. 



List of the JIalacostraca Pudoj)hthahna, found on the coasts of Berici'^kahire 

 and North Durhani. By I\. Embleton, Surgeon. 



1. Carcinus JTcvnas, Leach, Mai. Brit. tab. 5. Common dog crab. 

 Pefin. Brit. Zool. iv. tab. 2, fig. o. Everywhere common. 



2. PoRTUNus puber, Leach, Mai. Brit. tab. 6. Velvet crab. Penn. 



Brit. Zool. iv. tab. 4, fig. 8. Not uncommon. 



