80 PERISTERNIA. 



I suspect that this is merely a rather slim specimen of P. 

 Philberti, which is itself, possibly a mere variety of P. nassa- 

 tula. Lam. 



P. NASSATULA, Lam. PL 64, figs. 44-47, 51, 52, 58. 



Light yellowish-brown, deeper in the interstices of the ribs ; 

 aperture light purple. Length, 1-1*75 inches. 



Red Sea ; Indian Ocean ; Philippines ; New Guinea ; 



New Caledonia ; Paumotus. 



P. sub-nassatula, Souverb. (fig. 52), is founded on a single 

 specimen in which the ribs are undeveloped ; it is from New 

 Caledonia. P. Deshayesii, Kobelt (fig. 47), is a small form, 

 without sufficient permanence to constitute a variety. P. Fors- 

 kalii, Tapparone (fig. 51), is a long, slim form from the Red 

 Sea, which may be separated as a variety. P. microstoma, 

 Kobelt (fig. 58), from Mauritius, is the same. 



P. WAGNERI, Anton. PL 64, figs. 59-62. 



White or yellowish, interruptedly marked with chestnut spots 

 between the ribs, forming three revolving rows of maculations ; 

 aperture white within. Length. 1-1-5 inches. 



Viti Islands Garrett. 



This unfortunate shell, misunderstood by Reeve and others, is 

 certainly quite distinct from the species with which it has been 

 confounded. I figure Turbinella craticulata, Wagner (not Lam.), 

 upon which Anton founded the name (fig, 62) ; also T. crenulata, 

 Reeve, not Kiener (fig. 61), Purpura Bucciniformis, Kiener 

 (fig. 59), and T. tigriha, Hombr. et Jacq. (fig. 60), the latter 

 being a young shell. 



P. SPINOSA, Martyn. PL 64, figs. 48-50. 



Body-whorl biangulate, and spinose on the angles ; white, 

 banded, especially on the lower part, with chestnut or chocolate ; 

 aperture light purple. Length, 1-1-5 inches. 



Viti and Friendly Islands. 



P. iostoma, Nuttall (but never described by him), is figured in 

 Kuster's monograph, and referred to the coast of California. 

 The figure (fig. 50) represents very fairly a P. spinosa, and the 

 locality is, of course, erroneous. 



