1044 NODULARIA 
bluish-white. Epidermis dark green, lighter towards the 
margins, eroded on the beaks. 
Length 31, height 16, diam. 11 mm.” (Haas). 
Type locality, The Nile. 
Nodularia verrucosa Haas, Nachr. Deutsch. Mal. Ges., 1910, 
Pp. 99. 
The following species are unfigured, and it is impossible 
to make out what they are. According to von Martens they 
belong in this group. I have not seen any of them. 
NopULARIA CALATHUS (Bourguignat). 
Unio calathus Bourcuicnat, Esp. Ouk. et Tan., 1885, p. 23- 
Nodularia calathus SIMPSON, Syn., 1900, p. 824. 
Tanganyika. 
NoDULARIA BAKOYI (Rochebrune). 
Unio bakoyi ROCHEBRUNE, Bull. Soc. Phil., 7th ser., VI, 1882, 
p. 33.—GERMAIN, J]. de Conch., LVI, 1908, p. 112. 
Nodularia bakoyi Simpson, Syn., 1900, p. 824. 
Bakoy, Upper Senegal. 
Germain, (1. c.), states that this is probably the same as 
the subsequently described U. faidherbei Jouss. He says, 
“the author’s type, which is in the Museum of Paris, is a 
shell 35 mm. long, 19 mm. high at 11.5 mm. from the beaks 
and 13 mm. in diameter, presenting all of the principal char- 
acters of that species and especially. the same peculiar convex- 
ity of the valves with the greatest diameter near the beaks. 
Only the dorsal margin is less elevated, which causes the shell 
to appear a little more elongated.” 
NoDULARIA RATIDOTA (Charmes). 
Unio ratidotus CHArMES, Bull. Soc. Mal. Fr., II, 1885, p. 166. 
Nodularia radiota SIMPSON, Syn., 1900, p. 824. 
Central Africa. . 
NopuULARIA JULIANI (Rang). 
Unio juliani Ranc, Nouv. Ann. Mus., 1835, p. 300. 
Nodularia juliani Stmpson, Syn., 1900, p. 248. 
Senegal. 
