38 PROCEEDINGS OE THE MALACOLOGICAL SOCIETY. 



iV, immersa seems to us unconnected by any exactly intermediate 

 stage with K. Thersites, N. himaculosa, or N. callosa, though, of course, 

 coming next in sequence. The callosity extends, as in N. gillosula, L., 

 N. circumcincta, A. Ad., N. Kraussiana, Dunker, over the apex and 

 lateral margins of the shell, and in our opinion it constitutes a good 

 species. 



25. Nassa (AlectriojSt) ckenulata, Eeeve {an Bruguiere ?). We 

 are not sure whether this specific name, as having been relegated 

 to obscure synonymy three or four times over, should not be 

 abandoned. Our specimens agree with those in the British Museum 

 (Natural History) labelled N. crenulata, Brug. Comparisons with the 

 figures in Beeve's Conch. Icon, and Try on' s Manual lead lis to suppose 

 a slighter form than our individuals, but at all events we think it best 

 to leave them thus for the present. 



26. Nassa (Alectrion) nodifera, Powis. An allied form to the 

 preceding, and merged as the above into N. hirta, Kiener, by Tryon. 



27. Nassa (Hebra) subspinosa. Lam. Typical. With this we 

 observe Tryon ^ includes N. sistroiclea, Gr. & H. E^evill, which found 

 a place in our first list;^ but Mr. Booley has now sent many freshly 

 dredged specimens in a more mature condition, and we consider them 

 sufficiently distinct. 



28. ^ISTassa (Hebra) horrida, Dunker. Considered by Tryon 

 a variety only of J^. muricata ; but, though allied, we can always 

 distinguish it. 



29. ^'Nassa (Zeuxis) lurida, Gould [= N. dkpar, A. Ad.). Placed 

 under N. picta, Dunker, by Tryon.^ Though no doubt belonging 

 to a very variable assemblage, we can always detect this form without 

 difficulty. Taken collectively, this series of closely allied shells ranges 

 throughout the whole Eastern tropics. 



30. ISTassa (Zeuxis) lentiginosa, A. Ad., var. punctata, A. Ad. 

 Here, again, some difficulty as to limitation of forms prevails. Is 

 N. punctata different from iV". lentiginosa ? We think not. Tryon, 

 we observe,^ merges not only these, but a host of other smooth 

 forms (even including N. Marratii, Smith, which is surely a distinct 

 Andamanese shell), under N. gaudiosa, Hinds. 



31. Fassa (Hima) coNciNisrA, Powis. A pretty variety. We have 

 seen this species from many tropical Eastern localities. A remarkably 

 large specimen from Lifu has just come under our notice, about twice 

 the size usually seen. 



32. ISTassa (Niotha) eenestrata, Marrat. 



33. Nassa (II^iotha) livescens, Phil. Of wide distribution throughout 



1 T.c, p. 44. 2 Proc. Malac. Soc.,vol. ii, p. 169. 



3 Mau. Conch., ser. i, vol. iv, p. 36. * T.c, pp. 34, 35. 



