208 TURBO. 



I do not have access to Brocchi's description of this form. The 

 above is a translation of IssePs note in Mai. del Mar Rosso, p. 219. 

 My figure is a copy of that of Savigny, to which Issel refers. 



I cannot learn the exact date of Brocchi's paper, "Catalogo di una 

 xerie di conchiglie raccolte presso la co*ta africana del yolfo arabico 

 dal signor G. Forni" in which this form was described. It was 

 published in a journal entitled Biblioteca Italiana, sometime between 

 1819 and 1823. 



T. CUCULLATUS Tenison-Woods, 1878. Unfy tired. 



Shell solidly turbinate, with large irregular scorched patches on 

 a dirty white ground; whorls 4i, spirally closely keeled with small 

 round alternating keels, on the larger of which, about twelve in 

 number, there are small tubercles or small raised hooded scales ; 

 the whole shell is obliquely closely imbricately striate ; suture im- 

 pressed ; aperture round,* entire, and with an outer margin, within 

 which there is a very clearly defined line of silvery nacre which 

 lines the throat ; base convex, lirate. Alt. 24, diam. 18 mill. 



King's Id., Bass Sts., Tasmania. 



The proper position of this Senectus is unknown to me. 



T. SPENGLERIANUS Gmel., 1788. PI. 42, fig. 43 ; pi. 50, fig. <>.">. 



Shell imperforate, large, ovate-conic, white, irregularly maculated 

 and articulated with brown ; spire conic, acute ; whorls 6-7, rounded, 

 separated by widely channelled sutures, the last whorl ventricose, en- 

 circled by about seventeen smooth ribs which are as broad or broader 

 than their interstices ; aperture ovate, white within, outer lip thin, 

 base rounded ; columella with a very broad white callus which is 

 rerlexed over the axis from umbilical region downward; parietal 

 wall callous. Alt. 85, diam. 70 mill. 



West Indies ; Gulj of Mexico. 



Operculum (pi. 60, fig. 35) light brown inside, flat, w T ith 3-4 

 whorls, rapidly increasing, with apex scarcely more than one-fourth 

 the distance across face ; outside convex, white, much elevated close 

 to the columellar edge, minutely acutely and sparsely granose, spiral, 

 the beginning of the spiral more roughly asperate, partly covered by 

 a rude callus ; outer edge marked by several concentric impressed 

 lines. 



