420 MOLl.rsKS OF TlIK (JALAl'ACJOy STKAKNS. 



7. Lima pacifica Kcovo. 

 ITood Island. (';ii|HMitor. 



Suborder MYTILACEA. 



Family AVICULID^. 



Cirnus Aviciila Lamiirik. 

 8. Avicula Cumiugii Ivoovi'. 

 Galapajjos, WimiiitM'. 



(iciius PERNA Rrumii»>i«>. 

 9. Peina Chenmitzianus Orh. 

 Isoiiinnuoii C. Allot. 



liulotatijiablo and Hood Islands, Allmtrofis. 



10. Pema legnnien (iinclin. 

 llootl Island, Wimnier. 



11. Pema quadiangulaie Ke<>vo. 

 Charles Island, WiinnuM. 



Family >I YTILID.E. 

 O.-nus MYTILUS Linn.\ 

 12. Mytiliis multiformis ('i>r. 

 Rood Island, Albatross. 



13. Mytilus Adamseanus Pkr. 

 Hood Island, \Yininu'r. 



14. Mytilus cuneiformis Koovo, 

 riiathani Island, .lonos. 



(muus SEPTIFER Koolii/.. 



15. Septifer Cumingianus Dkr. 

 Hood Island, Albatross. 



Genus MODIOLA Laiuarck. 



16. Modiola capax Cyti. 

 Hood Island, Albatross; (Jalai)a«jos, Carpenter. 

 Cuiuis MODIOLARIA Beck. 

 17. Modiolaiia coarctata Dkr. 



Galapagos, Carpenter. 



