GARRETT: ON POLYNESIAN MITRID^. 1 3 



Marquesas, ranges throughout Polynesia. A large series of 

 specimens connect it with M. pellis-serpentis, Reeve. 



It is more common in the western groups than elsewhere. 



The animal is uniform pale luteous. 



13. Mitra cardinalis Gronovius. Reeve, 1. c, pi. iv., fig. 26. 



This fine species, which is not very common, is usually 

 found in shallow water inside the reefs and is generally 

 diffused throughout Polynesia. We have collected examples 

 in all the groups except the Marquesas Isles. 



The animal is uniform creamy-white. 



14. Mitra chrysostoma Swainson. Reeve, 1. c, pi. ii., fig. 12. 



Common under dead coral on the inner margins of the 

 outer reefs at the Samoa Islands ; less abundant at all the 

 other western groups. In Eastern Polynesia it is rarely found 

 at the Society and Panmotu Islands. 



15. Mitra chrysalis Reeve, 1. c, pi. xxv., fig. 200. 



Common under dead coral on the reefs at the Viti, 

 Tonga and Samoa Islands ; more rare in the Kingsmill group. 



It is very closely allied to Af. cucuijien?ia, from which it 

 differs in its smaller size, less robust form and different color. 

 Our specimens which are larger than Reeve's figure, are 23 

 mill in length. 



16. Mitra coronata Chemnitz. Reeve, 1. c, pi. xiv., fig. 



1040, 104b. 



Excepting the Marquesas, we found a few examples of 

 this species at all the South Sea groups. They live under 

 coral on the outer and inner reefs. 



The animal is brown, the margins of the foot and tenta- 

 cles white 



All our examples are very uniform in their specific 

 characters, except a slight variation in the size of the white 

 sutural nodules. They are smaller and more contracted 



