79 



hairs, or ciliated. Sides of propodos sparingly dentate. Two sucoeediyig 

 pairs of chelipeds strongly dentate on outer margin and upper surface. 

 Ischium of external maxillipeds shorter than meros. 



Distribution. — Great Britain, ISTorth, Moray ; South, Plymouth. 

 Ireland, general. Extra-Britannic, Madeira, Algiers. 



Species III. 



Scaly-armed Spanish Lobster. — Plate XIII. 



Galathea dispersa (Spence Bate). 



Galathea dispersa. Spence Bate, Proceedings Linnaean Society, London, 

 vol. iii., p. 3; Kinahan, Proceedings British Association, Eeport on 

 Dublin Bay Dredging, 1860 ; Proc. I^at. Hist. Soc, Dublin, vol. iii., 

 p. 49 ; Trans. Boy. Irish Ac, vol. xxiv., p. 99. 



Rostrum {r) moderate, nearly plane above, squamate, terminating as a 

 flattened tooth, and hearing four flattened teeth on each side. First pair 

 of chelipeds elongate, somewhat flattened ; dactylos narrowed; sides of pro- 

 podos nearly parallel, minutely toothed on outer margin, squamate; two 

 succeeding articulations sparingly strongly toothed on inner margin; inter- 

 nal antennce barely surpassing tip of rostrum; ischium of external foot- 

 jaws (9), nearly double length of meros of same limb. 



1, eye; 10", sculpture. 



Distribution. — Great Britain, South coast. Ireland, northern coast, 

 Belfast ; Eastern coast, Dublin. 



Species IV. 



Smooth-beaked Spanish Lobster. — Plate XIY. 



Galathea nexa (Embleton). 



Galathea nexa. Embleton, Proceedings Berwickshire Club ; Thompson, 

 Annals of liatural History, p. 255 ; IN'atural History of Ireland, 

 vol. iv., p. 385 ; Bell. Brit. Stalk-eyed Crust., 204 ; White, Pop. 

 Hist. Brit. Crust., p. 88 ; Kinahan, Proceed. liat. Hist. Soc, Dublin, 

 vol. ii„ excluding p. 47, which refers to G. Andrewsii ; Trans. Eoy. 

 Ir. Ac, vol. xxiv., p. 102 ; Spence Bate, Proceed. Linn. Soc, vol. iii., 

 p. 3. 



Rostrum (r), moderate, quite smooth above, covered with scattered 

 hairs, depressed in the median line, terminating in a cylindrical tooth, 

 which is serrated on its edge for its posterior half ; borders of rostrum armed 

 with two principal rounded teeth, and two secondary and smaller ; first 

 pair of chelipeds somewhat globose, moderately broad, elongate, twisted; 

 sides of propodos parallel, toothed on outer margin, surface sparingly tu- 

 ber culated, hairy ; two succeeding joints strongly toothed on upper surface; 

 internal antenn<^ surpassing rostrum ; ischium ef external foot-jaw nearly 

 double length of meros. 



