138 STALK-EYED CRUSTACEA. 
first somite this carina projects forward as a sharp tooth. On each side of 
this somite there is a prominent acute tooth directed obliquely forward. 
The median carina is continued on the base of the telson, where it is broken 
into two teeth, the anterior of which is the larger. There is, beside, a pair 
of spinulose carinz on the dorsal side of the telson, and the lateral margins 
of the telson are also spinulose. The lower margins of the pleure are 
spined in the way common to species of this genus. The eyes are large, 
and dark brown or black in color. The antennal scale is shorter than the 
rostrum, broadly ovate, and devoid of spines on either surface. 
The posterior pair of abdominal appendages are also destitute of spines, 
save the customary one on the outer margin of the external branch. The 
two branches are of about equal length and shorter than the telson. 
The dactyli of the ambulatory legs are lanceolate. 
In this species, as in G, aculeata A. M. Edw. (= Rhachocaris agassizit 
Smith), G. regalis Bate, G. iwestigatoris W.-M., G. smithi W.-M., @. caca 
W.-M., and G. loricata Fax., the fourth carina is expanded anteriorly into 
a very large, vertically compressed spine. In other respects the species 
here described is very different from those, as will be readily perceived 
by comparison of the figures and descriptions. 
Length of a female, 116 mm.; length of carapace (including rostrum) 
45 mm.; length of rostrum, 20 mm.; length of telson, 12 mm.; length of 
antennal scale, 11.5 mm.; breadth of antennal scale, 7.3 mm. 
Station ? (no label.) 12 + specimens. 
« 3395. 730 fathoms. 1 specimen. 
poet si tobe 1 (0)0)() ‘ 2 specimens. 
Glyphocrangon spinulosa Fax. 
Plate XX XVIII. 
Bull. Mus. Comp. Zoél., XXTV. 202, 1893. 
Rostrum long, acute, margins armed with vertically flattened spinous teeth 
from base to the level of the anterior extremity of the eyes, beyond which 
point the margins are unarmed; the anterior pair of the lateral spines are 
the largest. A median longitudinal row of smaller spines extends from the 
anterior boundary of the gastric area to the anterior fourth of the rostrum ; 
anteriorly these spines are confluent at their bases, forming a carina which is 
continued forward beyond the spines to the tip of the rostrum. Just inside 
