1040 NODULARIA 
cial ; ligament short, rather stout. Epidermis very deep brown, 
much eroded about the beaks; lines of growth fine, close and 
irregular; nache bluish, sometimes salmon-tinted, quite irides- 
cent. 
Length 23-26, height 13.5 (at 5.5 mm. from the beaks)— 
21.5 (at 12 mm. from the beaks), diam. 10-14 mm.”  (Ger- 
main). 
Type locality, Le Bangoran, affluent of the Chari, Country of 
Senoussi. 
Unio (Nodularia) bangoranensis GERMAIN, Bull. Mus. Nat. 
Hist... 1907.0 pix60 = V-Ate> Cente Frans “16072 "p54 saan we 
fig 22: 
“This species resembles in shape U. chizvoli, but differs by 
its more truncate form, the posterior region being notably 
more expanded; by its more inflated shell, gaping at both 
ends (in chivoti only the anterior end is gaping) ; and espe- 
cially by the entirely different sculpture of the surface.” 
NopuLARIA KGSHLERI Germain. 
“Shell quite large, elongated-suboval, very globose; valves 
slightly gaping posteriorly, much swollen and with the great- 
est convexity near the dorsal edge; dorsal margin straight ; 
ventral margin regularly convex, sloping upwards slightly 
anteriorly, almost parallel with the dorsal margin; antero- 
dorsal and postero-dorsal angles well marked; anterior end 
short and rounded; posterior region a little more than twice 
as long as the anterior; beaks large, prominent, incurved and 
with strong, zigzag ridges; dorsal edge blunt; ligament 12.5 
mm. long; in the right valve two strong cardinal teeth, the 
lower higher and sharper than the upper and a very long, 
straight, sharp lateral; in the left, a large cardinal tooth, faint- 
ly serrate, and two, subequal, long, thin and sharp laterals; 
anterior muscular impressions deep, posterior superficial; pal- 
lial line very faint. 
Shell moderately thick, very solid, dark chestnut-colored, 
greenish towards the beaks, with a yellowish zone well marked, 
near the ventral border. Sculpture consisting of very irregu- 
