ZOOTECUS. 369 



Cape Verde Islands and Senegambia eastward to Egypt, Abys- 

 sinia, Southern Arabia, to JBeluchistan. To the somewhat cursory 

 original description, he adds the following particulars. " The 

 sculpture consists of fine, close, subvertical striae, a little bent near 

 the suture, and intersected by several (usually three to six) very 

 narrow smooth spiral bands. These may be obsolete on the last 

 whorl or two, though usually persistent. The whorls are mode- 

 rately convex, the last ascending a trifle to the aperture. The 

 outer lip is somewhat thickened inside, giving the appearance of a 

 low white welt behind it externally. The edge itself is obtuse 

 but not expanded. The columellar margin is dilated, thickened, 

 and arches over the very small umbilicus. The species is exces- 

 sively variable, but the typical form is small, specimens measuring 

 as follows : 



" Length 10, diain. above aperture 3-8 mm., whorls 85. 



" Length 9, diain. above aperture 3-3 mm., whorls 7 j. 



"Length 8, diam. above aperture 3*2 mm., whorls 7|. 



" This small form is common in Arabia and India. The shell is 

 thinner and usually more whitish-corneous, less opaque-white than 

 the large forms. 



" Shells of the same general type but more robust have been 

 found in both Africa and India, and numerous nominal species 

 have been based upon them. It is quite likely that some of these 

 may be found to be local races worthy of recognition by name." 



334. Zootecus estellus, Benson. 



Bulimus estellus, Benson, A. M. N. H. ser. 2, xix, 1857, p. 327 ; 



Pfeiffer, Mon. Helic. Viv. iv, 1859, p. 462; Hanley & Theobald, 



Conch. Lid. 1870, pi. 22, fi>. 4. 

 Pupa (Cylindms) insularis, var. estellus, Nevill, Hand List, i, 1878, 



p. 195. 

 Bulimina (Mastus) estella, Pfeiffer & Clessin, Nomencl. Helic. Viv. 



1881, p. 293. 

 Buliminus (Zootecus} estellus, Kobelt, Conch.-Cab., Fam. Buli- 



minidae, 1900, p. 675, pi. 102, figs. 16, 17. 



Original description : " Testa arete perforata, oblonga, cylin- 

 drica, subremote spiraliter sulculosa, interstitiis confertissime 

 costulato-striolatis, albida; spira cylindrica, apice conico, acuti- 

 usculo ; sutura impressa ; anfractibus 8 vix convexiusculis, ultimo 

 ant ice asoendente, 3 testae paruma3quante, basi circa perforation em 

 leviter impressa ; apertura verticali, aYigulato-ovali, peristomate 

 obtuso, margine columellari verticali, incrassato-reflexo. 



" Long. 18, diam. 6 mill." (Benson.} 



Hob. India : Sind (Baker) ; Kudapah ; Balmir, Jodhpore 

 (Stoliczka). 



" At once distinguishable from the allied B. pullus, Gray, by its 

 stouter form, and by the ascent of the last whorl near the 

 aperture." (Benson.} 



2s 



