860 PROF. EHRENBERG ON ANIMALS OF THE CHALK 
Fossil in the Greek chalk marls; recent in the Baltic and North 
Sea, in the Mediterranean and near Cuba. Diameter j;'"". 
24. Ceratoneis Closterium, n.sp. Pl. VIII. fig. 7. C.setacea, cornibus 
longissimis, singulis corpore medio duplo longioribus et leviter con- 
niventibus lunata. 
North Sea near Cuxhaven, and in the Baltic near Wismar. Length 
of the entire animal 3, — 7;"’, of the body without the horns yz". 
25. Ceratoneis Fasciola, n. sp. Pl. VIII. fig. 6. C. lineari-lanceolata, 
sigmatoides, cornibus corpore brevioribus, diversa directione curvis. 
Recent near Cuxhaven and Tjérn, and near Wismar in the Baltic. 
Length 3," 
96. Cocconeis oceanica, n. sp. C. testula elliptica suborbiculari, dorso 
levissime convexa, exterius lineis concentricis simpliciter curvis ex- 
arata, non undulata nec transverse striata. 
In the Peruvian Ocean near Callao. Length ,j'". 
27. Coscinodiscus Argus. Syn. Coscinodiscus Ae 1838. C. tes- 
tule cellulose cellulis majoribus, in centro et margire paullo mi- 
noribus, ordine radiato szepius interrupto. 
Fossil in the chalk marls of panels and Oran; recent near 
Cuxhaven. Diameter of the fossil 7; — 3,'", of the recent 4 Le 
28. Coscinodiscus eccentricus, n. sp. C. testule cellulis parvis in aan 
curvas a centro aversas dispositis. 
Fossil in the chalk marl of Oran; recent near pars | near 
Tjorn in the Cattegat, and near Vera Cruz. Diameter 7z — 35". 
29. Coscinodiscus lineatus, Pl. VII. fig. 4. Syn. Cose. lineatus, rags 
C. testulz cellulis parvis in series transversas parallelas rectas dis- 
positis. 
Fossil in the chalk marl of Caltanisetta, recent near Cuxhaven. 
Diameter of the fossil 5 — 5!" of the living gy — 7p". 
30. Coscinodiscus minor, Pl. VII. fig. 2. Syn. Cose. minor, 1838. 
C. testulz cellulis parvis sparsis, statura minor. 
Fossil in the chalk marls of Caltanisetta, Oran, and Zante; recent 
near Cuxhaven. Diameter ,);'". 
31. Coscinodiscus Oculus Iridis, n. sp. C. testule magne cellulis 
majusculis, radiantibus, in extremo margine et prope centrum minori- 
bus, mediis nonnullis maximis, stellam centralem efficientibus. 
Fossil in the se marls of Greece, and recent near Cuxhaven. 
Diameter of dise 34". 
32. Coscinodiscus Bees Pl. VII. fig. 3. Syn. Cose. Patina, 1838, 
ex parte. C. testule magne cellulis mediocriter magnis in lineas cir- 
culares concentricas dispositis, ad niarginem decrescentibus. 
In the chalk marl of Zante, and recent near Cuxhaven. Diameter 
p aa ee ah! 
Vg Bor: ° 
