28 ALECTRION. 



A smaller, more jjracefully formed shell than the type, and 

 typically sutticieutly distinct, but varies much. Kiener's ligure 

 is a poor one (fig. 47), and that which Reeve has given, as well 

 as his description, refers to a ^V. taenia, Gmel. The following 

 are synonyms: N. rufula, Reeve (fig. 48), and N. i<pirata, A. 

 Ad. (fig. 49). 



Yar. suTLRALis, Lam. Figs. 52-54. 



Shoulder coronated by a row of tubercles. 



Length, 1-1*5 inches. 



PJdli'Ppines. Australia, New Caledonia. 



Fig. 54 represents the typical form, whilst fig. 53 shows a 

 variety with the tubercles almost obsolete, passing into var. 

 elegaiiH. N. interme.dia, Dunker (fig. 52) is an equivalent form, 

 and N. bucvulenta, Marrat, an unfigured species, may also be 

 placed here. 



N. iriRTA, Kieuor. Pi. 8, figs. 50, 51, 55-59. 



Light yellowish or orange-brow ii, with usually a pale central 



band. Length, 1 inch. 



Philippines, Australia, Polynesia, Indian Ocean. 

 The undoubted sj'uonyms of this species are N. VitiensiH, 

 Hombr. et Jaeq. (fig. 57), N. Stoliczkana, Nevill (fig. 58), N. 

 coslata, A. Ad. (fig. 50) and N. crenulata, Reeve, not Brug. (fig. 

 56). N. crenidata, Brug. is not to be identified positively, but 

 looks more like N. arcularia than the present species. N. hirta 

 l)rol)ably runs into the next species, N. monile. N. nodi f era., 

 I'owis (fig. 55), is not a satisfactorily determined form; if the 

 figure which I copy from Reeve is correct, it appears to be a 

 very broad, short, large si)ecimen of N. hirta, connecting with 

 N. pidla, Linn. The localities of N. nodifera, " Panama and 

 Galapagos," are almost certainly incorrect. N. hi/aria, BaJrd 

 (fig. 59) is, I think, a stumpy varietj\ 



N. MONILE, Kiener. 1*1. 9, figs. (50-68. 



Yellowish or ash color, with a rather broad darker central 

 band, and sometimes narrower ones al)ove and below it. Surface 

 beautifully polished, ribs more flexuous than in N. hirta; a 

 double row of nodules below the suture, caused by an impressed 

 line on the sloping shoulder. Length, 1 inch. 



Philippines, Australia, Central Polynesia. 



