NODULARIA 991 
Unio micheloti More, Jl. de Conch., XXXIV, 1886, pp. 77, 
291, pl. x11, figs. 6, 6a. 
Nodularia micheloti Simpson, Syn., 1900, p. 814. 
Oxynaia micheloti Haas, Con. Cab., Unio, 1910, pl. xiv, fig. 
8-9; (“O. hedeja MaBiLie”’), ibid, pl. xv, figs. 1-2. 
A rather small, solid, inflated, somewhat obovate species, 
which would seem from the figure to be closely related to N. 
pugio. 
NoDULARIA GLADIATOR (Ancey). 
Type locality, Tonkin. 
Unio gladiator Ancry, Le Nat., II], 1881, p. 468.—Simpson, 
Syn., 1900, p. 862.—DaAutzEenBuRG and H. Fiscuerr, Jl. de 
Conch: LITI»1roa5; ps 206. 
The description of this species is not now accessible to me. 
Dautzenburg and Fischer, (1. c.), state that in their opinion 
the name will have to be dropped, as owing to the lack of a 
figure and a sufficient description, it is impossible to determine 
whether Ancey referred to N. jowrdyi or N. micheloti. 
NopULARIA FLUCTIGERA (Lea). 
Shell somewhat elongated, subrhomboid, scarcely subsolid, 
convex, inequilateral, a little narrower in front, the anterior 
end being cut away below and narrowly rounded; base line 
straight or lightly incurved to behind the middle where it is 
full; dorsal outline curved a little; dorsal! slope obliquely trun- 
cate behind; posterior ridge subangular, ending in a blunt 
point below the median line; beaks moderately full, but little 
elevated, sculptured with strong, oblique ridges, which are 
somewhat zigzagged and continued over the whole surface; 
in addition to this the growth lines are raised into numerous, 
distinct threads, causing the shell to appear somewhat unevenly 
reticulate ; epidermis dull brownish-green or olive-green; teeth 
delicate, sublamellar; dorsal scars strong; muscle scars shal- 
low; nacre bluish, iridescent, and in the examples seen, show- 
ing something of the external sculpture. 
Length 48, height 21, diam. 14 mm. 
Southeast Asia, no doubt. 
