96 
BULLETIN OF THE UNITED STATES FTSH COMMISSION. 
propodus. The merus lias an inferior distal spine; thepropodus has an inferior row of spinules. Legs 
of fifth pair even more slender than those of fourth and shorter than those of second. Merus and 
propodus subequal; carpus about half as long; dactylus about one-third of propodus. 
Abdomen much narrower than carapace and not expanded in middle, the sides being nearly 
straight and parallel. Telson oblong, with sides slightly converging posteriorly, four-fifths as broad 
as long. The lamellae of uronods a little longer than telson, longer than broad. Telson armed on lateral 
margin with four small spines and on dorsal surface with rows of spines extending from near center to 
anterior and posterior extremities of lateral margin ; posterior margin emarginate and having a median 
spine. Inner lamella with a row' of spines on its outer margin and a second row' on its longitudinal 
carina; outer lamella with a row of spines occupying the middle third of outer margin and an oblique 
row extending from posterior end of marginal row inward and backward to posterior margin ; also a 
few spines on outer half of dorsal surface. 
Dimensions of female: Length from tip of rostrum to tip of telson, 28 mm. ; length of carapace to 
tip of rostrum, 11.2 mm.; length of rostrum, 1.5 mm.; height of carapace, 5.8 mm.; width of carapace, 
4.5 mm.; length of right cheliped, 15 mm.; length of merus, 5 mm.; length o f propodus, 7.4 mm.; 
length of propodal digit, 3 mm.; length of telson, 3.5 mm.; width of telson, 2.8 mm. 
Type, off Boca Prieta, 81 fathoms, coral, sand, station 6075, 1 female (Cat. No. 23780). 
This species, in its narrow, acuminate rostrum, approaches .1. armalus Smith, but is at once dis- 
tinguished by the more numerous spines of the carapace. 
Axius inaequalis, sp. nov. 
Allied to A. defensus. The rostrum w'hile slender and acuminate is, however, armed on one side 
wdth three sharp spines, and on the other side with two. Lateral margins of rostrum continued back 
on carapace in a carina extending half-v'ay to cervical suture 
and armed with two sharp spines, one just behind orbit. 
Median carina wdth one small spine. A short, faint sub- 
median carina, armed anteriorly with tw'o spinules; also a 
spinule between these and median carina. Eye-stalks large, 
dumbbell-shaped, nearly as long as rostrum, with a black 
cornea. The peduncle of antennula overreaches rostrum by 
the length of its last segment. Flagella subequal and about 
equal to length of carapace. Movable acicle of antenna is 
nearly as long as fourth segment of peduncle; spine at its 
base is about half as long as acicle. Armature of outer max- 
illipeds similar to that of A. defensus. 
Chelipeds equal; merus armed below with slender 
spines, and also above on distal half; a single spine on distal 
outer margin. Carpus spinous above; one spine below. 
Manus with a row of long spines above; one spine on outer 
face at base of fingers; lower margin rimmed, entire. Fin- 
gers and palm subequal in length. Prehensile edges of 
fingers dentate; tips crossing; fingers gaping. The rostrum 
reaches to the middle of the carpus. Abdomen very much narrower than carapace. 
Length from tip of rostrum to tip of telson, about 15 mm. ; length of carapace, 6 mm. 
'"he two specimens from which this description is made are very imperfect. 
Type locality, Mayaguez Harbor, 161 to 172 fathoms, sand, mud, station 6066 (Cat. No. 23781). 
tion, x 15. ( b ) Left cheliped, x 8. 
