EXPLANATION OF PLATE XXX. 



7. Tagelus gibbus, (p. 675;) natural size. 

 218. Tagelus divisus, (p. 676;) natural size. 

 219. Callista couvexa, (p. 681 ;) natural size. 

 220. Totteiiia gemma, (p. 682;) enlarged. 

 221. Cumingia tellinoides, (p. 67J;) natural size. 

 222. Macoma fragilis, var. fusca, (p. 676 ;) natural size. 

 223. Angulus teuer, (p. 677 ;) natural size. 

 224. Augulus tenellus, (p. 677 ;) natural size. 

 225. Tellina tenta, (p. 678 ;) natural size. 

 226. Kellia planulata, (p. 688;) enlarged. 

 227. Argina pexata, (p. 692:) natural size. 

 228. Scapharca transversa, (p. 691 ;) natural si/e. 

 229. Xueula delphinodonta, (p. 691 ;) enlarged. 

 230. Nucula proxima, (p. 691 ;) natural size. 

 231. Yoldia sapotilla, (p. 6*9 ;) natural size. 

 232. Yoldia limatula, (p. 689;) natural size. 



(Figure 22i \v.is diM-,v:i ly A. E. V.M-rill ; tin rost are fi:r\\ IVuni \v .s G &amp;gt;;iM. by E.S. Mors?.) 



