TECTARIUS. 257 



T. BULLATUS, Martyn. PI. 47, figs. 49-51, 53, 58. 



Shell thicker than the preceding species, imperforate, spinose- 

 papillary upon spiral ribs, the interstices closely spirally lirate, 

 suture often channeled by the exsertion of a row of spines above 

 it ; whorls often somewhat angulated by the greater prominence of 

 a pair of peripheral nodulous ribs ; cream white, reddish tinged 

 towards the summit ; columella toothed below, aperture lirate with- 

 in. Length, 1*5 in. 



Indian Ocean, Australia, Polynesia. 



T. grandinatus, Chemn., T. papillosus, Lam., T. coronatus, Val., 

 and vars. vera, subinermis, rustica, quadriseriata and elegans, of 

 Phil., are synonyms. T. spinulosa, Phil. (fig. 58), is a juvenile. 



Var. CORONARIA, Lam. Fig. 53. 



Shell longer, the spines shorter and smaller. 



Connects insensibly with the type, although formerly considered 

 a distinct species. 



T. TECTUM-PERSICUM, Linn. PI. 47, fig. 52. 



Spiny tubercles larger, more compressed, blunter than in T. bul- 

 letins, usually fewer spiral series ; cream color, often lineated with 

 chestnut. Length, 30 mill. 



Zanzibar, Madagascar, Mauritius. 



Notwithstanding its more rugose appearance, I think it probable 

 that this will prove to be a mere variety of T. bullaius. 



T. CUMINGII, Phil. PL 48, fig. 73. 



Deeply umbilicated, umbilicus defined by an angle, encircled by 

 spinose ribs, of which two are very prominent on the body whorl 

 and one on the spire, irregularly granularly lirate between them, 

 flesh color, interior light orange-brown, not ridged, columella not 

 toothed. Length, 22 mill. 



Philippines, Polynesia. 



The type of Gray's section Nina. It is T. echinulatus, Kiener. 



T. ARMATA, Issel. PI. 47, fig. 54. 



Imperforate, thick, solid, spirally granularly costate, with a peri- 

 pheral series of compressed spines, appearing on the whorls of the 

 spire, yellowish white, aperture lirate within, columella subdenti- 

 form below. Alt. 14 mill. 



Two of the figures of T. tectum-Persicum, in Kiister's Monograph 

 of Littorina, refer to this species. 



Suez. 

 17 



