672 CLASS x. 



Family XXXI. Notopoda LATR. 

 f Vulva at the base of third pair of feet. 



Ranina LAM. (Species of Albunea FABR.). Antennae short. 

 Shell oblong, oval or obtrigonal. Chelae compressed. Tail short, 

 extended. 



Sp. Ranina dentata LATR., Cancer raninus L., RUMPH. Arab. Rariteitk. 

 Tab. vii. fig. T, v, GUERIN Iconogr., Crust. PI. 14, fig. 3, DE HAAN 

 Crust., Faun. Jap. Tab. xxxiv. xxxv. figs, i 4 ; from the Island of 

 Mauritius to Japan. 



Note. Add genera : Notopus DE HAAN (Notopus dorsipes from which 

 Raninoides EDW. scarcely differs), Ranilia EDW. and Lyreidus DE HAAN. 



Homola LEACH. External antennae 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 LEACH, DESMAR. Crust. PI. 17, fig. i, from the Medi- 

 terranean. This genus, like the preceding, has alliance with Ilippa. 



Lithodes LATR. Shell obcordate, anteriorly rostrate, aculeate 

 and tuberculate. External antennae 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.) PONTOPPIDAN Norges 

 Naturl. Hist. n. p. 286 (with fig. at p. -276), HERBST Krdbben, 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 DALD., FABR. Internal antennae 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., RUMPH. Amb. Rariteitk. Tab. xi. 

 fig. i ; Dromia nodipes LATR., GUERIN Iconogr., Crust. PI. 14, fig. 66, &c. 

 These crustaceans seize with their hind feet, which are placed on the back, 

 different objects met with in the sea, Alcyonidice, sponges, &c., and fix 

 them as a covering on the shell. 



ft Female orifices of generation in the middle of sternum, 

 between the bases of third pair of feet. 



