On Cretaceous Ceplialopoda from ZwluJand. 3:2] 



PLATE XXVI. 



FIG. 



1. Cheloniceras goftschei, Kilian sp. Aptian, Powell's Camp, Upper Catembe. 

 Specimen No. 5117, p. 312. . Side view of body-chamber portion, b. 

 Peripheral view of same. c. Restored sectional outline of inner whorl. 

 d. Suture-line, restored from last two, at beginning of portion figured in 

 1 a (at *), x |. 



'2. Cheloniceras (Acanthoplites ?) delagoense, Krenkel sp. Same formation and 

 locality. No. 5118, p. 316. a, b. Side and peripheral views, c. Suture- 

 line, at diameter == 7'5 mm. (where whorl is coronatiform and con- 

 stricted), x 6. d. Same at 15 mm. /. = antisiphonal line, x about 6. 



3. Cheloniceras hamlrocii, Forbes sp. Aptian, Atherfield Clay, Isle of Wight. 



(Writer's Coll.) Suture-line, at diameter = 10 mm., x 6. (See p. 317.) 



4. Aconeceras nisoides, Sarasin sp. Aptian, Powell's Camp. No. 5119, p. 311. 



Side view (4) and sectional outline (46). 



5. Dipoloeeras sp. nov. ? Albian, Middle Branch, Manuan Creek. No. 4903. 



p. 280. a. Side view, with restored outline of complete shell. l>. Sec- 

 tional outline, showing peculiar keel. 



H. Dipoloeeras cristatum, Deluc sp. Albian, Manuan Creek. Portion of suture- 

 line, x 2, of specimen 2728, p. 277. /. = antisiphonal line, with keel of 

 previous whorl (impossible to remove) concealing internal lobe. 



7. Anisoceras sp. ind. Albian ? Low Ridge, about three miles east of foot of 

 Lebombo Mountains, north of M'Kusi River, due east of Ubombo. N. 

 4982, p. 288. Suture-line, x S. 



