162 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
Acanthephyra affinis, sp. nov. 
Plate II. Fig. 1-3. 
Similar to Acanthephyra (Systellaspis) lanceocaudata Bate, but different in 
the following regards : the apical tooth of the antennal scale projects forward 
far beyond the membranous part of the organ; the telson is shorter than even 
the inner branches of the posterior pair of abdominal appendages, and its dorsal 
surface is flattened, but not grooved. 
The seven teeth that surmount the gastric crest are closely approximated, 
and increase in size successively from the first to the fifth. The sixth is about 
equal to the fifth, the seventh a little smaller. The ege of this species measures 
3 X 2mm. 
Length, 100 mm. 
Station 258. 159 fathoms. 19. 
This species belongs to the subgenus Systellaspis, in which the orbit is con- 
tinuous to the first antennal tooth (the orbital tooth being absent), the dorsal 
carina of the sixth abdominal somite is wanting, and a prominent angle or tooth 
projects from each side of the anterior border of the first abdominal somite, 
overlapping the posterior margin of the carapace. The eggs, moreover, are of 
large size, indicating a protracted period of intra-oval development. 
Acanthephyra debilis A. M. Epw. 
Station 107. 428 fathoms. 1 specimen. 
Acanthephyra armata A. M. Epw. 
Station 135. 450 fathoms. 1 specimen. 
" 151. 356 $ 2 * 
Sicyonia edwardsii Miers 
Station 142. 27 fathoms. 1 specimen. 
Sicyonia brevirostris Srrurs. 
Station 38. 20 fathoms. 1 specimen. 
Peneus brasiliensis Larr. 
Station 27. 35 fathoms. 2 specimens. 
2 
Lu 
2, 90b Mu 
young. 
