104 CONCnYLW — DITHYRA. 27. 



7V/ft. nost. 8, fig. 5. 



1. maculis fnin'.s smnjuineis ohloni/is snh nmhones. 



with two oiiloiig ret! spots under the hin^^e. 



2. macnh's rioldri'is roditifo-sdfp'ffafis. 



witli violet arrow-shaped sj)()ts disposed in rays. 

 Tellina biinaculata. Linn. Syst. Nat. p. 1 120. 



GmcliH, Syst. p. 3240. 



Tiirfon, Linn. Nyst. iv. p. 196. 



Clximtilz, vi. p. 132, tab. 13, fig. 127 and 132. 



Da Costa, Brit. Conch, p. 213. 



Pennant, Brit. Zool. iv. p. 183. 



Montagu, Test. Brit. p. 69. 



Linn. Trans, viii. p. 57. 



Titrton, British Fauna, p. 151. 



Dnnonan, British Shells, i. tab. 19, fig. 1. 



Durset Catal. p. 31 , tab. 5, (ig. 7. 



Wood, Conch, p. 192, tab. 45, fig. 6 and *1. 



DUhcyn, Descript. Catal. p. 101. 

 Turtnn, Conch. Diet. p. 178. 

 Mus. nost. 'From the Western coasts. 



Shell half an inch long, and a little more in breadth, flat, 

 slightly and irregularly striate transversely, somewhat truncate 

 and angular at the anterior end, rounded at the other : hinge wfth 

 a single tooth and two lateral ones in one valve, and two primary 

 and two lateral teeth in the other. 



The two varieties exactly agree with each other in their out- 

 line and specific marks, but constantly preserve their separate 

 colors. One is depicted on the inside with a deep red oblong spot 



