the Nomenclature of the Foraminifera. 255 



Magnified 300 diameters : — 

 Figs. 1 & 2. Ptygostomum Orphei. From 840 feet. = Glohi- 



gerina hulloides, rough shell. 

 Figs. 3 & 4. Phanerostomum atlanticum. From 6480 feet. 



Gloh. cretacea, smooth. 

 Figs. 5&6. Globigerina ternata. From 840 feet. Glob. Ind- 



loideSj ordinary heaped var. 

 Fig. 7. Spiroplem'ites nebulosus. From 10800 feet. Fulvi- 



nnlina rejjanda, outspread form. 

 Fig. 26 represents a small Glohigerina on a living Conferva 



{Hygrocrocis Erebi) from 12000 feet (about 2^ miles) 



depth. 



§9. Volcanic May-dust, of May 1812; Barhadoes, West 

 Indies. (Monatsb. 1850, p. 359.) 



PI. XXXVIII. XXI. fig. 22. Rotalia globulosa. This appears to 

 be a Glohigerina. 



§10. Halibiolithic Volcanic Mud, Moy a, Schedid)a, Eastern 

 Archipelago. (Monatsb. 1846, pp. 171, 207.) 

 PI. XXXVIII. XXIII. fig. 1. Rotalia globulosa. Planorhulina. 

 fig. 2. Textilaria leptotheca. Virgulina 



Schreibersii, Cz. 

 fig. 3. T. globulosa. Text, glohidosa, Ehr. 

 fig. 4. Textilaria. T. gibbosa, D'Orb. 

 fig. 5. T. aculeata. T. suhangulata, D'Orb. 



§11. Storm-dust. 

 PI. XXXIX. fig. 140. Textilaria globulosa. Small T. gibbosa or 

 T. globulosa. 



§ 12. Sirocco-dust in Malta, 1830. 

 PI. XXXIX. III. e. Rotalia globulosa (senaria?). This is proba- 

 bly a Globigerina ; but perhaps it is Planorb. globulosa. 



§13. Coloured Rain in Ireland, April 14, 1849. (Monatsb. 

 1849, p. 200.) 

 PL XXXIX. XIV. g. Textilaria globulosa? This seems to be 



either a small rough-shelled T. gibbosa, ova, Globigerina 



of irregular shape. 



XX. Miscellaneous Fossil Foeaminifeea. 



§ 1. Polycystina-deposits of Barbadoes and Nicobar Islands'^. 



* We refer the student to the beautiful plates of Dr. Conrad Schwager's 

 memoir on the fossil Foraminifera of Kar Nikobar (' Novai-a-Expedition,' 

 Geol. Theil, vol. ii. 1864, and ' Quart. Joiirn. Geol. Sec' vol. xxviii. p. 125) 

 for more abundant illustrations. 



