Thomson. — On New Zealand Crustacea Anomura. 193 



Galathea pusilla, Heuderson. Plate XXI., fig. 7. 

 1885. G. pusilla, Henderson, Ann. and Mag. Nat. Hist., 



ser. 5, vol. xvi., p. 407. 

 1888. G. pusilla, Henderson, Eep. Anom. Chall. Exped., 

 pi. xii., fig 1. 



Carapace with about eight transverse striae fringed anteriorly 

 with very short hairs ; lateral border produced into about eight 

 small spines. The gastric region bears a pair of spines on each 

 side close to the base of the rostrum. The rostrum is broadly 

 triangular, slightly depressed, and near its apex bears a 

 minute spine on each side ; at its base there is a prominent 

 spine on each side immediately above the ocular peduncle. 

 As seen from above a spine appears to project between the 

 ocular peduncle and the rostrum ; this is a prolongation of 

 the first joint of the peduncle of the antenna. 



The ischium of the external maxillipedes has its outer 

 border prolonged distally into an acute spine ; the meros is 

 much shorter than the ischium, the inner border is armed 

 near its middle with a curved acute spine, and a similar pro- 

 jection is present at the distal end of the outer border. 



The chelipedes are pubescent, and the joints bear several 

 short curved spines ; the fingers are slightly shorter than the 

 palm, and their opposed edges are irregularly toothed. 



The ambulatory legs have the anterior borders of the meri 

 and carpi armed with short spines and hairs ; the dactyli are 

 more than half as long as the propodi, and have a series of 

 minute thorny spines on the posterior margin. 



The abdominal segments are comparatively smooth. 



Length of the largest female, 13-5 mm. ; of chelipede, 

 14 mm. ; of carapace, 7 mm. ; of rostrum, 2-5 mm. ; breadth 

 of carapace, 5 mm. 



The above description, taken mainly from Henderson's 

 account of the type specimens, agrees in all essential points 

 with the specimens in my possession, only the latter appear to 

 be more pubescent and spinose on the appendages. 



Habitat. — The species was originally described from a male 

 and two females taken by the " Challenger " off Twofold Bay 

 (near the south-east point of Austraha), at a depth of 150 

 fathoms. 



Of the specimens in my collection, four ovigerous females 

 were obtained by Captain Gray from the Cook Strait cable ; 

 ten (all immature except one adult female) were collected 

 by S. H. Drew, of Wanganui ; and one small one I took in 

 the dredge in Paterson Inlet in 8 fathoms. 



Genus 2. Munida, Leach. 

 Eostrum slender and spiniform, with a strong spine on 

 •either side of its base. Carapace with the surface usually 

 13 



