3o« WORMS. TESTACEA. 69. Pinna. 



Polymor- Shell 5-celled ; valves carlnate and flattifh on the incumbent 

 ph u ** fide : beaks obtufe and inflected backwards. 



Pall. it. l.app. n. 85; 



Inhabits the Ruffian fea ; about the fize of a plumb-ftone, and is 

 foun$ in frefh waters 4 times as large ; adheres in mafles to 

 Hones and marine fuftances by means of fmall tufts of byflus: 

 jlull brown, the divifions of the cells very fhort, 



Caniculatui Shell fmoothiiTi, chefnut-brown, within parti-coloured : 

 focket of the hinge caniculate. 

 Inhabits New Zealand. Mcnjn univ. conch. 2. tab. 78. 



Roftrum* 



Camelliu 



Shell oblong, thin, greenifh, truncate: beaks fharp and 

 carinate ; valves gaping at the end. 



Shaw Natur. MifcelL ix. tab. 315. upper figures. 



Patella unguis. Grnelin Sjjl. Nat. 3710. n. 95. 



Pumpf Muf. tab. 4. L Peti<v. Gaz. tab.^2. fig. 9* 



Da coil a conch, tab z.f. 2. Hump, conch, tab. 2. L. 

 a Fa<van. con:h. 1. tab. 4 fig. Z. C*^~*.f- tU- \^k4~ 



Che?nn. Ifaturf. 22. tab. 3. fig. A— E. 



Chemn. conch. 10. tab. 172 Jig. 1675--1677. 



Inhabits Amboina: whitifh with a caftof green: upper-ende 



very fharp, forming a prominent keel : valves exactly fimilar 



but open at each extremity. 



Shell oblong, thin, greenifh, truncate: beaks fharp and 

 carinate ; valves completely clofed. 

 Shaw Nat. Mifcel. ix. tab. 315. lower figures* 

 Inhabits Japaiu and exactly refembles the laft, except in having 

 the valves exactly clofed. 



69. PINNA. Animal a Limax: jlull bivalve, 

 fragile, upright, gaping at one end, and 

 furnifhed with a byffus or beard : hinge 

 without teeth, tli£ valves united into one. 



Nacre. 



The inhabitants of thefe fhells produce a large quantity of fine 

 ftrong byffus, which by the Italians is woven into a fort of filk : 

 the flu lis are generally found {landing erect in the fmoother 

 waters of bays, with the larger end a little open : the fifh of 

 many of them is a very rich food. 



Rudis. Shell vaulted, with arched fcales arranged in rows, 



'Barbut, tab. 12, fig* 1, Ltstcr conch, tab. 373. 



Adanl\ 



