THE NAUTILUS. 143 



adamsi, H. C. Lea. There seems to be some confusion in the species 

 of Area. A. limula and lienosa are only found fossil ; the latter 

 has been confused with the recent secticostata Rve. (jloridana Con.")- 

 A. holmesii is a synonym of campechensis, and pexata and americana 

 are only varieties. Plicatula cristata is a synonym of gibbosa. 

 Anomia ephippium is restricted to Europe, our species being A. sim- 

 plex. Mytilus domingensis is a synonym of M. exustus Linne. 

 Mytilus cubitus is a synonym of Modiolus citrinus Bolten, and M. 

 plicatulus=demissus Dillw., Lithophaga appendiculata and attenuata 

 are synonyms of L. bisulcata. L. caudigera and forficata are syno- 

 nyms of L. aristata Dillw., L. lithophaga Gibbes (not Linn) 

 niger Orb., Chama lazarus=macerophylla Gmel., Cardium pictum= 

 serratum, Dactylina=Pholas, P. costata and truncata are now placed 

 in the genus Barnea. P. semicostata and M. pusilla are synonyms 

 of Martesia striata Linn 6, M. smithi=carib(za Orb. C. W. J. 



NOTES. 



CERION SAGRAIANUM INTRODUCED INTO SOUTH AFRICA.-- 

 In August, 1913, I sent some live Cerion sagraianum Pfr., which I 

 had received from Cuba, to Dr. Pecker, Grahamstown, Cape Colony, 

 Africa. The Doctor wrote me that he had placed them in a certain 

 part of his garden, and that they had made themselves at home. 

 They burrowed under the dead leaves. He is going to let me know 

 from time to time how they get along. Dr. Paul Bartsch, suggested 

 that I write to you regarding this experiment, in ordes that a proper 

 record of the planting may be made which would save considerable 

 trouble sometime in the future G. W. PEPPER. 



HESPERARION HEMPHILLI MACULATUS A few days ago my 

 friend Mr. S. N. Knudsen gave me a living slug found among plants 

 received at Boulder, through a wholesale house in Denver. The 

 slug proves on examination to be H. hemphilli var. maculatus Ckll. 

 It is immature, and the genitalia do not show their proper charac- 

 ters, but everything visible agrees with the form to which it is as- 

 signed. It must be confessed, however, that the distinctions be- 

 tween If. niger and H. hemphilli are rather unsatisfactory, especially 

 in view of the variation in the genitalia of H. niger observed by 

 Pilsbry and Vanatta. The two supposed species also occupy the 



