144 
Transactions of the Royal Society of South Africa. 
44. Spheniscoceras tenue (Crick MS.), Spath. 
(Plate VIII, fig. 3 ; Plate VII, fig. 3.) 
1921. Spath, loc. cit. (Zululand), p. 242, text-fig. C lc, p. 243. 
1921. „ „ (Pondoland), table to p. 50. 
This species is represented in the collection by one example, almost 
completely septate, of the following dimensions : 122-5 — 63 — 23 — 00. 
Crick described this species in detail, but it is characterised in the one 
sentence : — 
" Besides the differences in the suture-line, this species is easily dis- 
tinguished both from Spheniscoceras africanum and Sph. minor by its 
greater compression and much more feeble ornaments." 
45. Spheniscoceras minor (Crick MS.), Spath. 
(Plate VI, fig. 2.) 
1921. Spath, loc. cit. (Zululand), p. 242, text-fig. C 16, p. 243. 
1921. „ „ (Pondoland), table to p. 50. 
This species was based on specimen C 19422, the dimensions of which 
are : 102 — -64 — 27- — -00. These dimensions were taken at the begin- 
ning of the body-chamber. A portion of this is preserved, but is very im- 
perfect. Of Crick's description only the following need be quoted : " At 
first sight this appears to be an immature specimen of Sph. africanum, but 
the form of the suture-line does not justify that conclusion. The character 
of the umbilicus [perfectly closed], as well as the fewness and promin- 
ence of the undulations on the inner half of the lateral area, serves also to 
separate this species from Sph. africanum. The ornaments of the test 
and the form of the suture-line also distinguish this species from Sph. 
tenue." 
A second example, not noticed by Crick, is enclosed in a block of matrix 
attached to one of the Mortoniceras, referred to under M. soutoni, and con- 
sidered to be transitional to M. aff. umkwelanense (C 19451). The strong 
ornamentation is even more pronounced in this second specimen. 
46. Spheniscoceras amapondense, v. Hoepen sp. 
(Plate VII, fig. 2.) 
1921. Pelecodiscus amapondensis, v. Hoepen, loc. cit., p. 33, pi. vii, 
figs. 1 and 2. 
A fragment (No. C 19424) in the collection, described by Mr. Crick as 
' Spheniscoceras, sp. ind.,' agrees with the smooth outer whorl of the type- 
