434 DR. G. S. BBADY ON NEW OR 



curved, bordered with rows of lanceolate spinules (fig. 22), which, towards the bases of 

 the ungues, have also intermediate smaller spinules ; in front of the ungues a row of 

 about ten flexuous ringed setae, which gradually decrease in length until the)' give place 

 to a fringe of densely-set fine hairs. Length 5 mm., height 4 mm. 



Shell of the male (fig. 17), seen from the side, subovate, somewhat narrowed towards 

 the front, greatest height situated in the middle and equal to nearly three-fourths of the 

 length ; anterior extremity rounded, beak sharp and curved, anteimal notch wide ; 

 posterior extremity subtruncate, rounded off below, abruptly angulated at its juuctioii 

 with the dorsal margin, which is almost straight for the greater part of its length, but 

 is well rounded in front, and slopes steeply behind to join the posterior border ; surface 

 minutely and closely punctate, fringed at the two extremities with long, fine hairs. 

 Length 6-25 mm., height 4-5 mm. Terminal joint of the secondary antennal branch 

 (fig. 18) forming a strong claw, very stout and constricted near the middle ; penultimate 

 joint armed on the opposing margin with a fascicle of very thick, rigid setee. 



Hah. Dredged in Lyttelton Harbour, 2-5 fathoms. Only few specimens, the males 

 badly mauled, and their limbs clogged with mud so as to be viewed with difficulty. 



Dr. Baird's figures and description agree well with these specimens, and his notice 

 of the wrinkled shell-surface confirms the impression that this is the form to which 

 he refers. 



Genus Philomedes Lilljeborg. 



Philomedes agilis Thomson. 



Philomedes agilis Thomson (i), p. 257, pi. xi. figs. C. ^a-e, D. \ a-g ■ G. S. Brady (5), p. 90, 

 pi. xvi. figs. 13-16. 



Taken in the surface-net, Otago Harbour. Males only. 



Philomedes sculpta, sp. n. (Plate XLIV. figs. 15-20.) 



Shell of the male (fig. 15), seen from the side, elongated, subrhomboidal, highest in 

 the middle and narrowing gradually to the extremities, height equal to half the length ; 

 anterior extremity produced to a subacute point, notch obsolete ; posterior extremity 

 produced below the middle into a wide, wedge-shaped, obtusely-pointed beak, above 

 which it is rather deeply sinuated; dorsal margin moderately and evenly curved 

 throughout i(s whole length, ventral almost straight in the middle and bent sharply 

 upward towards each extremity. Seen from above (fig. 16), tiie outline is compressed, 

 subovate, greatest width in front of the middle, and equal to less than half the length ; 

 anterior extremity wide, subtruncate, mucronate in the middle, and emarginate towards 

 the sides; posterior narrower, bluntly pointed, lateral margins convex and irregularly 

 sinuous. Surface of the shell undulated, covered with irregular, small, polygonal 

 pittings, and raised into two principal longitudinal ribs which join near the front, 

 forming a single short median ridge, but remain separate behind, running into a 



