248 LIMICOLARIA. 



HABITAT UNKNOWN, species 71, 72. 



The West African area south of the Congo will probably 

 prove to be sufficiently distinct in species from the coast 

 northward to be segregated as another division. The Senegal 

 and Kamerun fauna has numerous species, both land and 

 fresh water, in common with, or at least closely related to, 

 species of the upper Nile, although most of the N.-E. African 

 forms are quite distinct. The Congo valley seems to have a 

 large element of special species; but its upper portion lies 

 in the Great Lake faunal region. 



1. L. STEIATULA (Muller). PL 18, fig. 96. 



* ' Shell perforate, cylindric-turrite, rather thin, striate, and 

 conspicuously granulose-decussate by spiral lines; immacu- 

 late whitish under a pale buff epidermis ; spire long, the apex 

 obtuse; whorls 8, moderately convex, more strongly plicatu- 

 late at the sutures, the last whorl scarcely two-fifths the total 

 length, obtusely angulate-compressed at the perforation. 

 Columella rather straightened above, arcuate towards the 

 base. Aperture oblong-oval ; peristome unexpanded, the colu- 

 mellar margin broadly reflexed. Alt. 40, diam. 19, length of 

 aperture 18, width 9 mm." (Shuttlw.). 



Africa. 



Buccinum striatulum MULLER, Hist. Verm., ii, p. 147, no. 

 335. Bulla striatula GMEL., Syst. Nat. (13), p. 3430. DILL- 

 WYN, Catalogue, i, p. 492. Bulimus striatulus BRUG., En- 

 cycl. Meth., i, p. 492. PFR., Monogr., ii, 181. Helix stri- 

 atula FEB., Prodr., p. 57; Hist., pi. 141, f. 9, IQ.Limico- 

 laria striatula SHUTTLW., Notitise, i, p. 49, pi. 8, f. 1, 2. 

 PFR., Monogr., iv, 585. KOBELT, Conchyl. Cab., p. 119, pi. 

 33, f. 3, 4. 



I have copied Shuttleworth 's description and figure of this 

 old, but little known species, as he seems to have first placed 

 it upon an identifiable basis. Kobelt's figures of a specimen 

 in the Berlin Museum look very much like L. aurora. 



2. L. AURORA (Jay). PL 20, figs. 12, 13, 22. 



Shell oblong-ovate, narrowly umbilicate, the edge of the 



