CRUSTACEA DECAPODA— BORRADAILE. 85 



legs 3 and 4 with a spine under ischiopodite. Abdominal segments without keels or 

 spines. Telson nearly as long as uropods, which have exopodite and endopodite equal, 

 and a blunt tooth at end of outer edge of exopodite. 



Length of longest specimen, 45 mm. 



Three specimens were taken at Station 96. 



SuB-fAMiLY PANDALINAE. 



Genus PANDALUS. 

 Sub-genus PANDALUS. 



The name Dichelopandalm (CauUery, 1896) has been proposed for those members 

 of this sub-genus in which the first leg is minutely chelate, and that of Stylopandalus 

 (Coutiere, 1905) for those in which it is simple. Until, however, it is shown that the 

 groups of species thus designated are in other respects natural divisions of Pandalus, 

 it w'tM be well to retain the type-subgenus intact. 



14. Pandalus (Pandalus) paucidens, Mievsi, 1881. 



Pandalus paucidens, Miers, Proc. Zool. Soc. Lond., 1881, p. 74, pi. VII, figs. 6, 7. 



The gill-formula of this species is that of P. montagui, and the first leg is minutely 

 chelate. 



Fourteen specimens were taken at Station 41. 



Family RHYNCHOCINETIDAE. 



15. Rhynchocinetes typus, H. M.-Edw., 1837. 



Bliynchocinetes typus, H. M.-Edwards, Ann. Sci. Nat. (2) VII, p. 16.5, pi. IV, fig. c; Miers, 

 Cat. N. Zealand Crust., p. 77 (1876). 



One specimen was taken at Station 96. 



Family HIPPOLYTIDAE. 



16. Chorismus antarcticus (PfefFer), 1887. 



Hippolyte antarctica, Pfefter, Jahrb. Hamburg. Wiss. Anst. IV, p. 51, pi. I, figs. 22-27 (1887). 

 Cliorismus antarcticus, Caiman, Rep. Nat. Antarctic Exp. 1901-4, Nat. Hist., II, Crust. 

 Decap. p. 1 (1907) ; Lenz and Strunck, Deutsche Siidpolar Exp. XV, iii, p. 318 (1914). 



The specimens agree perfectly with the descriptions of Pfeffer and Caiman, but the 

 rostral formula may be higher than is stated by them. In a surprising number of the 

 specimens the rostrum is damaged,* but several of the specimens show that the formula 

 may reach ^. There is no constant relation between the numbers of teeth above and 

 below the rostrum, and their spacing shows a good deal of variation. There is more 

 often one than two teeth near the tip. The rostrum is usually a little longer, but may 



* This appears to have been the case with that figured by Pfefler. 



N 2 



