CXvi PROCEEDINGS OP THE GEOLOGICAL SOCIETY., [May 1 896, 



the Eocene of High Cliff, Hants. A Palceograpsus, sp., is known 

 from the Eocene of Northern Italy. Colpocaris bullata comes from 

 the Nummulitic of Switzerland, Cceloma vigil from Yicenza, and 

 C. taunicum from the Oligocene of Germany ; Cceloma rupeliense, 

 Stainier, from the Argile Rupelienne ; C. holmticum, Stolley, from 

 Holstein. Galenopsis crassifrons, G. Gervilleanus, G. pustulosus, 

 are all from the Nummulitic of Italy and France ; and G. Mur- 

 chisoni is from the Miocene of Sinde, India. Miopias, sp., is from 

 the Miocene of Radoboj, Austria. Telphusa speciosa, T. Quenstedtii, 

 and Gecarcinus punctatus are from the Miocene of (Eningen ; 

 Glyptonotus trispinosus, Macrophthalmus Latreillei, M. emarginata, 

 M. incisa, and a species of Gelasimus are from the Island of 

 Hainan, where they occur in the Quaternary deposits, and are 

 collected largely for medicine by the Chinese druggists, in whose 

 pharmacopoeia they form an important item as an antacid and for 

 the cure of sores. 



In this group of Land-crabs we have two genera and species in 

 the Cretaceous, ten genera and eleven species in the Eocene and 

 Oligocene, and eight genera and nine species in Miocene and Newer 

 Tertiary strata. 



Last year I invited your attention mainly to the state of our know- 

 ledge of the earlier and simpler forms of Crustacea inhabiting the 

 Palaeozoic seas, and placed in the great division of theENTOMosTRACA. 

 I referred to the extinct Trilobita and the important advance in our 

 knowledge of this group which we owe to American palaeontologists. 

 I spoke of the Merostomata, including therein the Eurypterida 

 and Xiphosura — the former aquatic division being now entirely 

 extinct, but having, no doubt, given origin, in its remote ancestry, 

 to the terrestrial and air-breathing Scorpionida, which have come 

 down from the Silurian epoch to our time, apparently but little 

 changed in structure — while the latter (the living Xiphosura, 

 1 King-crabs ') have even adhered, in both their general form and 

 their aquatic mode of respiration and life, to their Palaeozoic 

 progenitors. 



I discussed the Palaeozoic ' giant Pod-shrimps/ Phyllocarida, 

 placed heretofore with the general group of the Phyllopoda — now 

 claimed as the direct ancestors of the modern Malacostraca — but 

 still represented by one living form, apparently but little changed, 

 — the genus Rebalia. 



Of the other divisions of the Branchiopoda I said but little, nor 



