162 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



Acanthephyra affinis, sp. nov. 



Plate II. Fig. 1-3. 



Similar to Acanthejohyra (Systellasjns) 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 egg of this species measures 

 3X2 mm. 



Length, 100 mm. 



Station 258. 159 fathoms. 1 9 . 



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. Edw. 

 Station 107. 428 fathoms. 1 specimen. 



Acanthephyra armata A. M. Edw. 



Station 135. 450 fathoms. 1 specimen. 

 " 151. 356 " 2 " 



Sicyonia edwardsii Miers. 

 Station 142. 27 fathoms. 1 specimen. 



Sicyonia brevirostris Stimps. 

 Station 38. 20 fathoms. 1 specimen. 



Peneus brasiliensis Latr. 



Station 37. 35 fathoms. 2 specimens. 

 " 29. 955 " 3 young. 



