32 
Transactions of the Boyal Society of South Africa. 
It perhaps agrees more nearly with Mr. H. Woods"'' interpretation 
of Area obesa, a species originally described by Pictet and Eoux 
(Moll. Foss. Gres Yerts Geneve, 1852, pi. 38, figs. 1, 2, p. 464), from 
the Albian rocks of Switzerland, especially in the deep posterior 
sides, which contribute to the marked convexity of the valves. The 
new species may probably be placed between the two forms 
referred to. 
Parts of eight specimens are represented in the collection, being 
connected with the same matrix as that containing Trigonia cricki 
and some further shells. The rock is of a marly character, of light 
brown, or fawn colour. 
So far as can be ascertained no species of similar characters has 
been recorded from either Africa or India, if we except Miiller's 
GucullcBa cf. glabra from the Neocomian of German East Africa 
(in Bornhardt's " Deutsche-Ost-Afrika," 1900, vol. 7, pi. 25, figs. 1, 2, 
p. 561), which, however, shows a less pronounced umbonal region, 
more compressed valves, and differences of sculpture. 
The species is named after Mr. Henry Woods, author of a 
monograph on the Cretaceous fauna of Pondoland, South Africa. 
Locality. — Tributaries of the Manuan Creek. 
CUCULL^A, sp. 
Plate IX., fig. 5. 
Description. — Shell rhomboidal in shape, convex, with a slightly 
anterior umbo, whilst the dorsal and ventral margins appear to be 
more or less parallel to each other. The posterior area is depressed 
besides being very obliquely and sharply angulated within, its outer 
margin being nearly perpendicular ; anteriorly the margin is 
rounded; both the anterior and posterior borders form sharp 
angulations at the hinge extremities. The sculpture is most in- 
distinct and is seen only on the lower part of the posterior slope, 
appearing to consist of fairly strong radial striations equidistantly 
arranged, crossed within by short, closely placed, oblique lines. 
Eemains of concentric ornamentation are obscurely seen on the 
otherwise much worn lateral face of this specimen. 
Dimensions. — 
Length 18 mm. 
Height 11 „ 
Diameter 5 ,, 
Observations. — The specimen referred to consists of an external 
view of a badly preserved right valve belonging to a small individual, 
* Woods, H. — Cretaceous Lamellibranchia of England, Mon. Pal. Soc, 1899, 
pi. xii., figs. 6-8, p. 61. 
