130 PSEUDOCERATITES OF THE CRETACEOUS. 
composite of several genera distinct in their .development and in° their 
sutures from any form of true Pulchelliide and also differing decidedly 
from each other. The species here mentioned as H. sayni is assumed to be 
the type beeause it is one of the first two species mentioned by this author 
and is the first one of these figured. His Pulchellia subcaicedi appears to 
me to belong with Pulchellia caicedi (Karsten) in the genus Carstenia. 
Heinzia saynt Hyatt. 
Pulchellia provincialis Sayn, 1890, Ann. Soc. d’Agriculture de Lyon, 6th series, 
Vol. II, pp. 165, 166; pl. 1, fig. 16; pl. 2, fig. 7. 
This is neither the species figured by d’Orbigny nor that given by 
Nicklés, but a dwarfed, compressed form with fine tubercles and fine costze 
developed at a comparatively early stage. It is similar to true H. provin- 
cialis being less involute than corvoli. 
Locality: Djebel-Ouach, North Africa. 
Age: Barremien. 
Hernzia corioti Nickles. 
Pulchellia (Heinzia) corioli Nicklés, 1890, Mém. Soc. géol. France, Paléontologie, 
No. 4, p. 53, pls. 6, 7. 
This species and another, supposed to be allied to sayni, are both 
larger, have coarser ornaments and more complex sutures than the African 
forms, and broad channels like Gerhardtia. 
Locality: Spain. 
Age: Barremian. 
HeInzIA HEINZI Coquand.” 
Piulchellia heinzi Sayn, 1890, Ann. Soc. d Agriculture de Lyon, 6th series, Vol. II, 
pl. 2, fig. 5. 
This species has similar ornamentation, but much coarser than in 
H. sayni. The sutures are given, and these are not similar to those of 
Pulchellidee. 
Locality: North Africa. 
Age: Barremian. 
« Coronites is represented in North Africa by a small group of dwarfed forms having the develop- 
ment and general aspect of the more discoidal forms of Hoplites. The type is Cor. (Heinzia) coronatoides 
(Sayn). This form has a ventral channel, beginning at a comparatively early stage while the young 
are still highly coronate and the costz dichotomous on the venter. These spring from singie nodes cn 
the latero-vyentral angles, which are coincident with the umbilical shoulder. These subsequently 
