EXPLANATION OF THE PLATES. 533 
PLATE XIV. 
Opistho-branchiata. Pace 
1. Tornatella tornatilis, L. Brit. ........ SSobhcoretiods as 313 
2. Cylindrites acutus, Sby. Bath Oolite, Bese ee ce 313 
3. Acteonella Renauxiana, D’Orb. 4. lL. Chalk, France...... 314 
4, Cinulia avellana, Brongn. U. Greensand, [sce eee 314 
5. Tornatina voluta, Quoy sp. 8. I. Guam, Australia........ 315 
pet ampulla, Ty.  . India. i... ce eases psceue coecnsas 316 
i ——-.(Atys)naucum, L, 4% Philippines......... 0.000.000: 316 
Semiomiavariais, Rane, Pitcairn Id... ...... eee ee eee ees 316 
emecermoaia, NTU? OBI 16). sk ea ewes ce ee cebeeasweeas 316 
Peweyuchna cylindracea, Mont. Brit. 00... 000005 c¥ene's soe 317 
i. Aplustrum aplustre, L.sp. 4. Mauritius ......00..00 000% 318 
12. Scaphander lignarius, L. sp. = IB TAGE 5 5a «, wears wag have tens ae 318 
Semeerine aperta, 1). SP. TUB. 35:5 siete ce + «.0:01 ayo ws sein n « erste! wleleie. ole 318 
Eaaplysia depilans (hybrida, Sby.). Brit. 0.0.2. .c.c00 wcnces 320 
15. Dolabella scapula, Martyn, sp. 4. Mauritius ............ 321 
feanimer Ehilippi, Krohn. Sicily .. 02.2 6.006506. ee elke 322 
17. Pleurobranchus membranaceus, Mont. 2. Brit. .......... 322 
18. Umbrella umbellata, Dillw. 4. Mauritius.............. 1. 823 
Nucleobranchiata. 
Peemearinarna cymbium, L. 3. Medit. 25.5.0 ssisceevd senna? 343 
20. Cardiapoda placenta, H. and 8. 4. Aflac eae ee 348 
21. Atlanta Peronii, Les. 22, operc. 23, fry. §. Atlantic ........ 344 
24, Oxygyrus Keraudrenii, Rang. 25, operc. 8S. Atlantic ...... 344 | 
26. Bellerophina minuta, Sby. Gault, Brit. ............-0008: 346 
27. Bellerophon bi-carinatus, Lév. 4. Carb. Limestone, Torunay 344 
28. ——————- expansus, Sby. ao BU. Silumiany Brite. yer 345 
29. Porcellia Puzosi, Lév. 4. Carb. Limestone, Belgium ...... 344 
30. Cyrtolites ornatus, Conrad (cast) 2. L. Silurian, U. States 346 
31. Eccuyliomphalus Bucklandi, Portl. 3. Silurian, Tyrone ... 346 
Pieropoda. 
32. Hyalea tridentata, Gmel: -Atlantie—Medit. 7:5 sievarcte - 0ee 348 
Pam ieouora pyramidata, DL. Atlantic... . 5.200 sruceess vent ot 349 
Seeeerencisaciculata, Ramo. Atlantic... ...06..cees dees b ene oe 349 
Pavers. columnella, Rang. S. Atlantic .......0..250058 «6 349 
36. Vaginella depressa, Basterot. 3. Miocene, Bordeaux ...... 349 
37. Eurybia Gaudichaudi, Souleyet SS. Pacific (Huxley) ...... 350 
38. Psyche globulosa, Rang. Newfoundland.................: 361 
ey mupiulia proposcidea, Peron.“ Medit..... 6. ssce sees acne ¢ 351 
40. Tiedemannia Neapolitana, Chiaje. Medit. ..............0% 351 
41. Limacina antarctica (J. Hooker). §. Polar Seas, 63°—46° .. 351 
42. Spirialis bulimoides, D’Orb. sp. Atlantic.................. 301 
43, Cheletropis Huxleyi, Forbes. 5. 8. E. Australia.......... 352 
44, Macgillivraia pelaciga, Forbes. 2. C. Byron, E. Australia.. 352 
Peememoiborealis, Brug.) Arctic. SeaS .... 6. .ceeseeecenensgaed 353 
46. Spongio-branchzea australis, D’Orb. 3. 8. Atlantic, Falk- 
MA ot ocean \a'sn, a dicks acai t's ai ic Sale spies) ara. the ow epmetes 354 
47. Pneumodermon violaceum, D’Orb. 3. S. Atlantic ........ 303 
48. T'richocyclus Dumerilii, Esch. 42. South Sea............ 304 
49, Pelagia alba, Q. and G. Amboina...... bbe [aca cdt cio, sine sto ca eres 304 
50, Cyinodocea diaphana, ise AGIA BAGEC oe: oh sie? piaes $3) 20% ot ehatate 354 
A Ay 
Anarene 
