OSTREADiE. 
349 
The genus Pectunculus are abundant on the shores of the Mediter- 
ta Uean and along the Atlantic coast. If we take up at hazard a 
Fig. 137. I'ecten plica (Unroras). Fig. 136. Pccten Japonic* (Gmollin). 
' Ia ndful of shells on any part of the French coast, one-third will consist 
°* Pectuneula. They are found mixed with Cardium, Venus, Kazor- 
^ 8 h, and Pectens. Their round and robust frame attracts much atten- 
ti°n. They form the first of those charming infantile collection which 
ar ° gathered at the mother’s feet. 
The animal which inhabits this pretty shell is moulded on its curva- 
* ’g* 139. lVctunculus auroflua Fig. 140. Pectunculus dclessertii 
(Reeve). (Reeve). 
tute ; like the shell, it is round and squat; it is furnished with a 
l53 °'ith, large, and thick for its size, and with double branchiae. When the 
a jhtnal is taken alive, it sometimes exudes a thick mucous liquid over the 
e V which has disgusted many a young collector with his conquest. 
Truong numerous species of Pectunculus we note as worthy of 
f T r esentatiou : P. aurejlua, Peeve (Fig. 139); P. delessertii, Eeeve 
