Plate 30 



Fig. 1. Ancylus gaulus Gould. Cape of Good Hope. Lectotype USNM 24111. Length 5, 



height 2, width 3.1 mm. (10 x). 

 Fig. 2. Astarte undata Gould. [New England.] Lectotype MCZ 216819. Length 30, 



height 25, width 11 mm. (1.1 x). 

 Fig. 3. Astarte quadrans Gould. [Swampscott,] Massachusetts Bay. Lectotype MCZ 



143295. Length 8, height 6.5, width 3 mm. (7 x). 

 Fig. 4. Astarte castanea picea Gould. Chelsea Beach [Massachusetts]. Lectotype MCZ 



216818. Length 29, height 27, width 14 mm. (1.1 x). 

 Fig. 5. Callista glandula Gould. China Seas. Ideotype USNM 24725. Length 44, 



height 38, width 13 mm. (2 x). 



