VEOA-EXPEDITIONEHS V ET ENSKAPLIG A ARBKTEN. 



509 



* Hydrocera compressa Wallich (M. J. Vol. VI, pag. 252, PI. 

 XIII, fig. 7 — 12). The structure of the valve consists of a 

 ■coarse reticulation of large 5 — 7-gonal cells, 6 in 0,oi mm., 

 .and a finer decoration of small puncta arranged in lines radia- 

 ting from the centre. Ends of the valve (in S. V.) destitute 

 ■of the coarse reticulation. 



Anaulus birostratus Grun. (Van Heurck Syn. PI. CIII, fig. 

 1-2). 



* Triceratum (ardicum var. ?) formosum Btw. (A. Schm. Atl. 

 PI. LXXIX, fig. 2) 3— 6-gonal varieties. 



T. punctatum Btw. (M. J. Vol. IV, pag. 275, PI. XVII, 

 iig. 18). 



* T. cinnamomeum Grev. (M. J. N. S. Ill, pag. 232, PI. X, fig. 12), 

 T. Favus Ehb. 



T. Pentacrinus Wallich (M. J. VI, pag. 249, PI. XII, fig. 

 10—19). 



* T. elongatum Grun. (A. Schm. Atl. PI. LXXX, fig. 12). 



* T. armatum Koper (M. J. II, pag. 283). 



Heniidiscus cuneiformis Wallich (Pritch. Inf. PL VI, fig. 14 

 and probably Euodia Ceylanensis Leuduger pag. 62, PI. VI, 

 iig. 65). 



* Aulacodiscus orientalis Grev. (T. M. S. XII, pag. 12, PI. 

 II, fig. 6. A. Schm. Atl. PI. XXXIV, fig. 2), 



* B. Beeverice Johns. (Pritch. Inf. pag. 844, PI. VI, fig. 5). 

 This form has been distributed in CI. and M5ll. Diat. No 278 

 as A. Comberi var. ceylanica Grun., according to the deter- 

 mination of Grunow. I think nevertheless that it may be 

 the A. Beeverise of Johns. 



* A. Macrceanus Grev. (T. M. S. X, pag. 23, PI. II, fig. 4). 

 Coscinodiscus radiatus Ehb. (A. S. Atl. PI. LX, fig. 6 — 7). 

 C. excentriciis Ehb. (A. S. Atl. LVIII, fig. 46). 



* a denarius A. S. (Atl. PI. LVII, fig. 20—21). 



* C. cocconeiformis A. S. (Atl. PI. LVIII, fig. 25—28). 

 C. nitidus Greg. (A. S. Atl. PI. LVIII, fig. 18). 



* C. sp. A. S. Atl. LVII, fig. 32. 



* C. suUilis Ehb. (A. S. Atl. PI. LVII, fig. 14). 



* C. symmetricus (Grev.?) A. S. (Atl. PL LVII, fig. 27). 



* Actinocyclus Ehrenbergii Kalfs (Prit. Inf. p. 834). 



* A. tenellus Br^b. (Donkin M. J. I, pag. 7, PL I, fig. 16. 

 A. moniliformis Ealfs? A. S. N. S. D. Ill, fig. 31). 



* A. suUilis Greg. 



* Actinoptychus hexagonns Grun. (A. S. Atl. PL I, fig. 15). 

 V. tenelJa A. S. 1. c. fig. 16. 



