No. 7. — Reports on the Dredging Operations off the West Coast of 
Central America to the Galapagos, to the West Coast of Mexico, 
and in the Gulf of California, in Charge of ALEXANDER AGASSIZ, 
carried on by the U. S. Fish Commission Steamer “ Albatross,” 
during 1891, LigUT.-COMMANDER Z. L. Tanner, U. S. N., Com- 
manding. 
[Published by permission of Marshall McDonald, U. S. Fish Commissioner.] 
VI. 
Preliminary Descriptions of New Species of Crustacea.’ By Warrer 
Faxon. 
Orpver PODOPHTHALMIA. 
SUBORDER DECAPODA. 
Family MAIID 2. 
Huprognatha granulata, sp. nov. 
Carapace coarsely granulate ; two erect blunt spines in median line of cara- 
pace, one on the gastric, the other on the cardiac area ; a transverse row of four 
or five small tubercles in front of the gastric spine ; a spine near the middle of 
each branchial area, with a smaller lateral spine below and a little in advance 
of it ; the hepatic area bears a short blunt spine on its most prominent part ; 
there are, besides, three or four prominent tubercles on the angle which divides 
the hepatic and pterygostomian regions. The antennary spine is very long, 
reaching beyond the rostral horns; the three horns of the rostrum (interan- 
tennulary and lateral) are about equal in length; the supra-orbital spines are 
well developed, and, like the antennary and three rostral spines, are conspicu- 
1 Figures of all the species described in this paper will appear in the final report, 
whose publication is deferred pending the preparation of the lithographic plates. 
A record of the stations occupied by the “ Albatross ” during her cruise of 1891 
will be found in Bull. Mus. Comp. Zoól., Vol. XXIII. No. 1, pp, 4-8. 
VOL. XXIV. — NO. 7. 1 
