CRUSTACEA DECAPODA— BOERADAILE. 99 



33. Neptunus {Hellenus) spinicarpus (Stm.), 1870. 



Achelous spinicarpus, Stimpson, Bull. Mus. Comp. Zool. II, p. 148 (1870). 

 Neptunus {Hellenus) spinicarpus, A. Milne-Edwards, Miss. Sci. Mexique, Crust., p. 221, pi. XL, 

 fig. 1 (1879) ; Miers, "Challenger" Brachyura, p. 182 (1886). 



Very numerous specimens taken at Station 42. 



Family XANTHIDAE. 

 Sub-family MENIPPINAE. 



34. Pilumnus maori, n. sp. Fig. 10. 



A Pilumnus, dredged in 70 fathoms off New Zealand, does not appear to belong 

 to any of the described species of the genus, and I am therefore reluctantly compelled 

 to add one more to the already long list of local forms of these crabs. 



Diagnosis. — Body and legs covered thickly in front and above, but more 

 sparsely behind and below, with coarse hairs, yellowish in colour when preserved in 

 spirit, some of the hairs much longer than the rest ; body otherwise smooth save 

 for five sharp anterolateral spines of the carapace, of which the first stands at the angle 

 of the orbit, and the second is smaller than the rest, and very slightly more ventrally 

 placed. Eegions of carapace rather faintly marked. Length of carapace in middle 

 line three-quarters of greatest breadth, which is at base of last side-spine ; width 

 between orbits rather more than one-third of greatest breadth. Distance from outer 

 angle of orbit to base of last side-spine somewhat less than that from base of same 

 spine to hinder edge of carapace. Carapace strongly convex in front. Upper sm-face 

 of front marked by a shallow groove, its edge with a faint meciian notch, and at its 

 ends a forward trend to orbital edge, which bears below some sharp teeth irregularly 

 set, and above some blunt tubercles and a shallow notch. No subhepatic spine. 

 Flagellum of antenna naked. Chelipeds alike, but unequal, the right the larger ; 

 arms with two spines near end of upper edge, wrists spinous on exposed surface, 

 palms spinous above and on upper part of outer side, granulate on its lower part, the 

 granules not in regular rows. Fingers black and distinctly toothed. Walking legs 

 stout, with spine at end of upper edge of meropodite, two or three spines on upper 

 edge of carpopodite, and a small, sharp end-claw. 



Length of single specimen (a male), 6 mm. 



Station 96. 



Family GONEPLACIDAE. 

 Sub-family GONEPLACINAE. 



35. Goneplax hirsutus, n. sp. Fig. 11. 



Diagnosis. — Carapace about two-thirds as long as broad ; its greatest width at 

 base of extraorbital spines ; its regions faintly marked except for a pronounced 



