422 Annals of the South African Museum. 



of tubercles on the telson, though from the figure there would 

 appear to be 4 such, the general shape is more oval. 



G. tubicauda seems to be essentially an antarctic form, not having 

 been found north of 50 S. latitude. 



CYMODOCELLA SUBLEVIS, n. sp. 

 (Plate XXXVI. B.) 



Body very finely shagreened, visible chiefly on posterior margins 

 of peraeon segments. Head with eyes of the normal Sphaeromid 

 size. Seventh segment of the peraeon narrower than, and laterally 

 overlapped by, the 6th segment. Epimera not distinctly separated 

 from segments, almost vertical. Pleon with 1st segment con- 

 cealed beneath 7th peraeon segment, 4th segment with 2 very 

 obscure tubercles, telson convex basally, with 2 obscure tubercles, 

 lateral margins bent inwards ventrally forming a tube curving 

 upwards with the apical foramen directed dorsally. 



First antenna, 1st joint stout, twice as long as 2nd or 3rd, which 

 are subequal, 3rd more slender than 2nd, flagellum 7-jointed, equal 

 to 1st and 2nd peduncular joints together. 



Second antenna, 1st and 3rd joints subequal, 2nd a little longer, 

 4th and 5th a little longer than 2nd, subequal, flagellum 10-jointed, 

 as long as peduncle. 



Epistome triangular, proximally narrow, widening rapidly but 

 embracing hardly more than the basal third of upper lip, which is 

 broader than long, distal margin rounded. 



Lower lip with lobes short, broad, apically rounded. 



Mandibles, cutting-edge bidentate, secondary cutting-edge well 

 developed in left, spine-row with ca. 6 spines, molar strong, oblique, 

 denticulate, palp slender, 1st joint slightly longer than 2nd, 3rd 

 shorter. 



First maxilla, outer plate with 9-10 spines, the inner ones 

 denticulate, inner plate with 4 plumose setae. 



Second maxilla, outer and middle plates each with 4 minutely 

 denticulate spine-setae. 



Maxilliped, inner plate equal to 2nd joint, with 1 coupling-hook, 

 4th, 5th and 6th joints internally lobed. 



First peraeopod with 4th joint produced on outer apex, with 

 1 strong spine, inner apices of 4th, 5th and 6th joints each with 

 1 strong doubly pectinate spine, fur on these same joints not very 

 thick or long. 



Second peraeopod longer and much more slender than first, 3rd and 



