58 Cumacea: 6. Chalarostylidae, 2. Hemilamprops, 7. Paralampropidae 



denticulation of the carapace, agreeing in both sexes with H. pellucida but 

 differing from H. normani in the apical spines of the telson; having in peraeopod 1 

 the 7*^ joint twice as long as the 5**^, and notably longer than the <o^^, while 

 in a 9 specimen of H. pellucida, 8 mm long, this 7*^ joint is notably shorter 

 than the 6*^^ and less than once and a half as long as the 5*^. The fragi- 

 lity of this limb in the southern species commonly makes it unavailable for 

 comparison. Peraeopod 3 in the 6 appears to agree with H. pellucida in the 

 want of peculiar appendages on the 3*^ joint. Telson comparatively short, 

 scarcely longer than the last segment, not decidedly longer as in the other 

 two species, with 2 or 3 pairs of lateral spinules, and 3 subequal apical 

 spines, much larger than the spinules (Sars), or with 3 in c?, 4 or 5 in g 

 pairs of lateral spines, and 3 apical, not greatly longer than the others, the 

 median sometimes a little the longest (Caiman, but perhaps referring to 

 H. normani). Colour light orange or golden yellow, eye distinct, bright red 

 (G. 0. Sars), without pigment (Caiman). L. 7 mm, 



Norway, N. to Lofoten Islands, in depths 150 to over 188 m ; South of Rockall, 1 152 m. 



6. H. uniplicata (0. Sars) 1872 Lamprops u., G. 0. Sars in: Forh. Selsk. 

 Christian., 1871 p. 270 | 1883 Hemilamprops u., G. 0. Sars in: Forh. Selsk. Christian., 

 1882 nr. 18 p. 11, 56 | 1886 IT. it., G. 0. Sars in: Norske Nordhavs-Exp., v.6 Crust. 2 

 p. 18 I 1896 H. u., J. Bonnier in: Ann. Univ. Lyon, v. 26 p. 549 | 1899 H. u., G. 0. Sars 

 in: Crust. Norway, v.S p. 24 t. 16, J7 | 1905 H. u., Caiman in: Sci. Invest. Fish. Ireland, 

 1904 app. 1 p. 41 I 1908 H. u., Zimmer in: Ergeb. Tiefsee-Exp., v.S p. 171. 



Body long and slender. Pseudorostral lobes shortly produced, quadrate. 

 Frontal lobe of carapace slightly keeled medio-dorsally, and almost surrounded 

 by a pair of conspicuous curved carinae, which approach without meeting 

 one another behind the middle of the carapace. Eyelobe very small, trian- 

 gular. Pleon considerably longer than preceding portion of the body, slightly 

 tapering. Telson much longer than the sixth segment, subequal to peduncle of 

 uropods. evenly tapering, with 6 or 7 pairs of lateral spines, and 3 subequal rather 

 longer spines on the apex. Eye very small, but distinct, red. Antenna 1 of Q 

 with principal flagellum and accessory both 3-jointed, 3^ joint of accessory minute, 

 flagellum of d 5-jointed, 1^* joint with row of 7 long filaments, accessory 

 of 3 joints, with perhaps a microscopic 4*^ Sars figures on 2^^ joint of antenna 2 

 in c? a laminar process similar to that in B. pellucida. Peraeopod 1, 2'^'^ joint 

 strongly curved, 7*^» joint longer than 6*^, more than twice as long as 5*^ 

 Peraeopod 3 in d without peculiar appendages on the 3^ joint but with 

 special sculpture of the widened short 6*^ joint. Peduncle of the uropods 

 subequal to the exopod, in which the 1^* joint is rather more than ^1^^^ of 

 the second, both combined being much shorter than the endopod, in which 

 the l^t joint is far longer than the combined 2^^ and 3*^. Colour bright 

 orange. L. 7 mm. 



Norway, N. to Lofoten Islands and Norwegian N. Atlantic, 113—785 m, W. coast 

 of Ireland, depth 364 m. 



7. Fam. Paralamppopidae 



1912 Paralampropidae, T. Stebbing in: Ann. S. Afr. Mus., v. 10 v p. 133, 143. 



Telson large, with more than 2 apical spines. Antenna I with both 

 flagella well developed. Antenna 2 of female 5-jointed. Maxilla 1 without 

 palp. Peraeopods 1 — 4 with exopods in both sexes well developed except 

 those on the 3*^ and 4*^^ pairs of the female which are rudimentary. Only 

 3 pairs of pleopods in the male. Uropods with the endopod 3-jointed. 



1 genus. 



