68 THE BRACHYURA. 
Matuta banksii Leach. 
Matuta banksii Alcock, 1896, 65, 158, description, not M. picta Hess. 
Nukuhiva, Marquesas Ids.; shore and seine; Sept. 15, 17, 1899; 2 3, 
5 9, 2 juv. 
LEUCOSIIDAE. 
Nucia gelida, sp. nov. ~ 
Pl. 5, Fig, 4; Pl. 9, Figs. 2-2. 
. Entire surface frosted with granules. 
Carapace broader than long, roughly hexagonal with the pterygostomian 
regions protuberant; covered with tubercles, which toward the front and 
sides become gradually elongated, forming blunt conical spines. Longest 
spines at lateral angle, and at pterygostomian angle. 
Front formed by two teeth separated by a furrow, and bearing each a 
tubercle on the margin. 
Orbit not concealing the eye, armed with a supraorbital and a sharp post-— 
orbital spine. A spine at the angle of the buccal cavity, and four below 
the orbit. Two tubercles on the exognath of the outer maxilliped. 
Chelipeds of g equal, merus having a few conical spines disposed in a 
row along the outer margin and in a transverse series on the distal half of — 
the upper surface. Wrist and hand with a few tubercles above; fingers 
with longitudinal lines of granulations. 
The merus and carpus joints of the legs have each two protuberances on 
the upper margin; dactyli elongate, regularly tapering, horny tips trans- 
parent. ’ 
2, Length 2.5 mm., width 3.5 mm. 
Type locality :— Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 1 9 — 
ovigerous, (Cat. No. 32,858, U. S. N. M.) | 
Leucosides whitmeei (Miers). 
Leucosia whitmeei Alcock, 1896, 65, 224. 3 
Mela, Carolines; shore, seine; Feb. 16, 1900; 1 2. 
