75 



carinate ; sixth hicarinate, sulcate; telson triangular, deeply triangularly 

 sulcate above; second pair of chelipeds (11), mucli shorter than third. 



(9, external foot-jaw; 10, dactylos and propodos of first cheliped. 

 rigure twice life size). 



Distribution. — Great Britain, Eastern coast, Moray Frith ; Southern 

 coast; "Western do. Ireland, i^orth-east coast, Belfast; East coast, 

 Dublin ; Western coast, Galway. 



Genfs ly Nectocrangon, not British. 



Paet II.— GALATHEID^. 

 Family — Galatheid^. 



Carapax depressus, rostratus. Antennae exappendiculatae, Antennse 

 internae duobus filamentis, infra oculos insitae. Antennae externae satis 

 longum uno filamento. Chelipedum, par primum didactylum, paria, 

 secundum ad quartum simplicia, acuminata, par quintum debile, didac- 

 tylum. Maxillipedes externae sulipediformes. 



Abdomen depressus, somites, anteriores primus ad sextus in maribus 

 appendiculati ; in foeminis secundus ad sextus solum appendiculati. 



Somitis, ultimus submembranaceus, sine appendice. 



Genera, Grimothea, Galathea, Munida. 



Genus I Grimothea (nondum in Britannicis maribus inventus). 



Species — Gr. Gregaria. 



Genus II. — Galathea. 



Rostrum depressum, satis latum lateribus saepius dentatis, Cheli- 

 pedum par primum satis latum, non elongatum ; maxillepedes externi 

 subpediformes elongati, angustique. Species : — Gal. squamifera, An- 

 drewsii dispersa, nexa, strigosa, cum multis aliis. 



1. Galathea squamifera (Fabricius). 



G. Eostro brevi, tuberculis squamosis ciliatis superne velato, me- 

 diane sulcato ; dente cylindrico terminante, marginibus fortiter denticu- 

 latis; chelipedum pare prime lato, denticulatis tuberculis conferto ; 

 articulis, secundo, tertio, quartoque, externe fortiter denticulatis ; max- 

 illipedibus externis, cum ischio (articulo tertio) quam meros (articulo 

 quarto) breviori. In littoris Magnae Britanniae et Hiberniae. 



2. Galathea Andrewsii (Kinahan). 



G. Eostro brevi, squamosis tuberculis pilosis parce velato ; chelipe- 

 dum pare prime (pedum par primum) elongate, rotundato, angusto, 

 parce squamose tuberculato, tuberculis saepissime denticulatis; cheli- 



