1866.] WOODWAUD NEW SPECIES OF RANINA. 591 



Note on a New Species of Eanina (E. porifera) from the Tektiary 

 Strata 0/ Trinidad. By Henry Woodward, F.G.S., F.Z.S. 



A SPECIMEN of a Crustacean placed in my hands for examination by 

 my friend Mr. E. Lechmere Gruppy, from the Tertiary formation of 

 Trinidad, proves to be a portion of the dorsal surface of the carapace 

 of a Brachyiirous Decapod — nearly approaching the Anomura — 

 belonging to the subsection Notopoda and the genus Eanina. 



The species of this genus (which was established by Lamarck in 

 1801) are not only most singular in form, but they are of special 

 interest to the palaeontologist as occurring in the Nummulitic Lime- 

 stone of Bavaria, Austria and Italy, Asia Minor, Scinde, and the 

 West Indies (Trinidad), and also in the Oligocene of Germany and 

 the Miocene of Turin. Nor has the genus now disappeared ; for at 

 the present day it is represented by the Bayiina dentata of Latreille, 

 which is found living in the Sandwich Islands, the Moluccas, the 

 Mauritius, and Japan (De Haan, Siebold's ' Fauna Japonica,' 1833, 

 p. 139, t. 34 ifc; 35), whilst a nearly allied genus, the Ramnoides, 

 Edw., is found living in the Philippine Islands and Trinidad, having 

 been collected in this latter locality by Mr. Guppy. 



The following is the list of aU the species known to the author : — 



Eanina 



1. Aldrovandi, Eanz (Mem. di Storia nat. Dec. 1, 1820, p. 73, t. 5). 



Lower Eocene Nummulitic formation. Kressenberg, Valdenega, and 

 Madugi d'Auzago. 



2. Tchihatcheffi, d'Arch. (Progr. de la Geol. iii. p. 303). 



Nummulitic formation. Asia Minor. 



3. Marestiana, Konig (p. 20, taf. 5. fig. 1, 2). 



Nummulitic formation. Kressenberg and environs of Yerona. 



4. HaszUnsJcyi, Eeuss (Foss. Krabben, p. 22, t. 4. f. 4, 5). 



Upper Eocene ? Epei*ies, Hungary. 



5. speciosa, Miiaster, sp. (Miinst. Beit, zur Petrefact. iii. p. 24, t. 2. f. 1-3). 



Oligocene. Biinde. 



6. ohlonga, Miinster, sp. {I. c. p. 24, t. 2. f. 4). 



Oligocene. Ebenda. 



7. palmca, Sismonda (Acad. Leop. Crost. Foss. Piemonte, t. 3. f. 1). 



Miocene. Colle di Torino. 



8. sp. (Eeuss, Foss. Krabben, p. 21, t. 5. f. 3, 4). 



Nummulitic. Environs of Yicenza. 



9. sp. Nummulitic formation. Kurachee, Scinde. Collected by Major 



W. E. Baker. (In British Museum.) 



10. forifera, H. W. Tertiary. Trinidad. R. L. Guppy, Esq. 



11. dentata, Latr. (De Haan, 'Fauna Japonica,' 1833, p. 139, t. 34 & 35). 



Living. Japan, &c. 



The Ranince are aU burrowing forms of Crustacea, living for the 

 most part in deep water, buried in sand or mud, for digging in 

 which their limbs are most admirably adapted. 



Unfortunately none of the appendages are preserved in the speci- 

 men under consideration ; but all the species of this genus are curi- 

 ously sculptured upon the dorsal surface of their carapaces, and this 

 ornamentation is extremely characteristic of the group. It consists 

 of irregular transverse pectinated ridges, sometimes interspersed with 

 small punctations, the ridges being more or less curved and interca- 

 lating with one another. 



