672 CLASS X. 
Family XXXI. Notopoda Larr. 
+ Vulve at the base of third pair of feet. 
Ranina Lam. (Species of Albunea FAsr.). Antenne short. 
Shell oblong, oval or obtrigonal. Chelee compressed. Tail short, 
extended. 
Sp. Ranina dentata Latr., Cancer raninus L., Rumen. Amb. Rariteith. 
Tab. vil. fig. T, Vv, GuéRIN Jconogr., Crust. Pl. 14, fig. 3, Dm Haan 
Crust., Faun. Jap. Tab. XXXIv. Xxxv. figs. 1—4; from the Island of 
Mauritius to Japan. 
Note.—Add genera: Notopus Dr Haan (Notopus dorsipes from which 
Raninoides Epw. scarcely differs), Ranilia Epw. and Lyreidus DE Haan. 
Homola Leacu. External antenne terminated by a long seta, 
middle not received in a sulcus of frons. Shell oblongo-quadrate, 
spinose. ‘Tail inflected beneath. Feet elongate ; fifth pair of feet 
dorsal, subcheliform. 
Sp. Homola spinifrons Leacu, DEsMAR. Crust.’Pl. 17, fig. 1, from the Medi- 
terranean. This genus, like the preceding, has alliance with Hippa. 
Lithodes Latr. Shell obcordate, anteriorly rostrate, aculeate 
and tuberculate. External antennee terminated by a long seta. 
Tail inflected beneath. Second, third and fourth pairs of feet long, 
spinose ; fifth pair of feet minute, almost hidden under the posterior 
margin of shell, cylindrical, with apex didactylous, obtuse. 
Sp. Lithodes arctica Lam., Cancer maja (excl. Syn.) Pontopprpan Norges 
Naturl. Hist. 11. p. 286 (with fig. at p. 276), Hersst XArabben, Tab. xv., 
Desmar. Crust. Pl. 25. This species, living in the North Sea, is named 
Troldkrabbe, Devil's Crab. The feet measure fully 2 feet, although the 
shell is not larger than 5 inches. 
Droma Dawv., Fasr. Internal antenne received in sulcus of 
frons. Shell orbicular, very convex. Feet short or moderate ; four 
or more rarely (Dynomene LATR.) two last dorsal, subcheliform at 
the apex. 
Sp. Dromia Rumphii, Cancer Dromia L., Rumen. Amb. Rariteith. Tab. x1. 
fig. 1 ;—Dromia nodipes Latr., GUERIN Iconogr., Crust. Pl. 14, fig. 66, &e. 
These crustaceans seize with their hind feet, which are placed on the back, 
different objects met with in the sea, Alcyonidic, sponges, &c., and fix 
them as a covering on the shell. 
Tt Female orifices of generation in the middle of sternum, 
between the bases of third pair of feet. 
