ZOOLOGY OF FERNAI^^DO NOEONHA. 489 



M. ansulafa does not meution the presence o£ a secoud white 

 zone on the body-whorl as represented in his figure, but this does 

 occasionally exist. Tryon places this species in the synonymy o£ 

 31. dermestina, Lamk., together with M. cavea, Eeeve, 31. Adamsi, 

 Dohrn, 31. pulchella, Eeeve, 31. jpisoUna, Lamk., 31. hisfrio, 

 Eeeve, and 3f. consanguinea, Eeeve. A more ridiculous instance 

 than this of the "lumping " of species I have never seen. Tryon 

 never could have examined examples of these various forms, 

 for if he had he would not have united them ; he must have 

 been misled by the figures, or perhaps a little jealousy of non- 

 possession may have influenced him. 



Reeve's 31. leucodesma he says is beyond a doubt the same as 

 31. pardalis, Kiister. Prom this it is, in my judgment, perfectly 

 distinct ; and the statement that " Eeeve's figure of 31. pardalis 

 is a Cohunhella'^ is sheer guess-work. The shell figured by 

 Eeeve is in the British Museum, and not only is it a Mitra, but 

 correctly identified by Eeeve as 31. pardalis, Kiister. What 

 right had Tryon to make such a statement in the face of Eeeve's 

 description, in which he properly characterizes the shell as a 

 3Iitra loith four plaits on the columella? Numbers of similar 

 absurdities occur throughout this work of Tryon's, which might 

 have been avoided if more judgment had been used and the love 

 of " lumping " been overcome. 



16. Maegi]N"ella sagittata, Hinds. 

 Hah. Bahamas to Brazil. 



31. fluctuata, C. B. Adams, from Jamaica, appears to be the 

 same as this species. 



17. Triton Eidleyi, sp. u. (Plate XXX. fig. 1.) 



Testa late fusiformis, albida, obsolete ti'izonata, zonis supra 

 varices aurantiis ; anfractus uormales, superne declives et leviter 

 concavi, ad medium biangulati, inferne constricti, costis lougitu- 

 dinalibus circiter 7(in aufract, ultimo subtubereuliformibus inferne 

 evanescentibus) iastructi, liris spiralibus teuuibus (in anfr. pen- 

 ultimo 7-8) aliisque longitudinalibus tenuioribus concinne can- 

 cellati ; apertura ovalis, alba ; canal is brevis, dextrorsum versus ; 

 columella alba, superne arcuata, vix tortuosa, tuberculis vel liris 

 transversis supra callum tenuem munita ; labrum compresse 

 varicosum, intus liris duodecim in paribus ordinatis instructura. 



Longit. 19 millim., diam. 10. 



LINN. JOUKN. — zoology, VOL. XX. 38 



