HOMORUS, WEST AFRICA. 149 



curved; peristorne in adults generally edged with black. 

 Length 55, diarn. 14, alt. of aperture 12, width 7.5 mm. 

 (D. et P.). 



Congo: Nsendwe (P. Dupuis). 



Subulina (Subulona) martensi DUP. et PUTZ., Bull, des 

 Seances Soc. Roy. Mai. Belg. 1901, p. xxxvii. f. 9. 



"This species especially approaches the Subulona castanea 

 var. davata v. Marts.; but in that the penult, whorl is com- 

 paratively higher for its length, and it is more glossy. More- 

 over, the number of whorls in our species exceeds that given 

 for 8. castanea." (D. et P.) 



The animal is uniform dark gray and the foot is small. 

 It is viviparous. 



27. II. BADIUS (Martens). PI. 60, fig. 75. 



Shell turrited, imperforate, closely and finely decussate, 

 rufous-brown with rare black-brown streaks, glossy. Whorls 

 11, slightly convex, separated by an impressed, crenulated su- 

 ture, the first two forming a short apical cone, the third, 

 fourth and fifth whorls subequal, the following whorls slowly 

 increasing. Last whorl slightly angular on a line with the 

 end of the suture, tapering beneath. Aperture quite oblique, 

 lanceolate-ovate, occupying two-ninths the shell's length. 

 Parietal wall and columellar margin deeply sinuated, green- 

 ish-yellow, the columella obliquely truncate below. Length 

 63.5, diam. 13.5, aperture length 13, diarn. 9 mm. (Marts.}. 



Congo river. 



Stenogyra badia MARTS., Conchologische Mittheilungen iii, 

 p. 8, pi. 38, f. 13, 14 (Dec. 1889). 



Nearest allied, von Martens writes, to Subulin'k lenta Edg. 

 Smith, from the neighborhood of Tanganyika, but is dis- 

 tinct by its decussate sculpture and granose suture, as well 

 as by the somewhat stronger inflation of the last whorl. 

 These two and the 3u~b. soUdiuscula E. Smith, seem to form 

 a special African group of species, differing from other 

 Subulinas by the size, dark coloring and distinct epidermis, 

 and which may be distinguished by the term expressive of 

 enlargement, Subulona. 



