112 
BULLETIN OE THE UNITED STATES EISH COMMISSION. 
Genus AUTOMATE de Man. 
Automate de Man, Arch. f. Natnr., uii, part I, 529, 1887. 
Carapace compressed, leaving the eyes exposed by a large sinus; armed with a feeble median 
convexity. Eye-stalks parallel, conical, cornea much reduced. Antennular peduncles extremely 
elongate, especially the median article; flagellum simple; stvloeerite very small. Antennal scale very 
short; carpal joint very elongate. Third maxillipeds very slender, much longer than antennuiary 
peduncles. Anterior feet strong, asymmetrical, especially in the male, compressed, smooth, and entire. 
Carpus very short, globular. Movable linger of large chela with a molar process penetrating a cavity 
in the immovable finger. Second pair long; first carpal segment shorter than the second. Remaining 
feet robust, compressed, unarmed, dactylus simple. 
(d) Cheliped of female, .< 8. (e) Tail fan, x 10.(36. (/) Hair from tail, much enlarged. 
Automate evermanni, sp. nov. 
This species in its carapace and eyes resembles .1. dolichognatha de Man. The antennular scale is 
shorter than in dolichognatha; antennal scale longer than in that species, in adults reaching two-thirds 
the length of penult segment of antennular peduncle; its outer margin is straight. The outer maxil- 
lipeds reach beyond antennular peduncles by the entire length of terminal joint. The large cheliped 
of the male resembles that of dolichognatha, figured by Coutiere; the anterior margin of the carpus has 
a projecting tooth on lower part of outer side; another smaller tooth on upper part of inner side. 
Lower margin of propodus granulated near its middle. Fingers gaping. Pollex longer than in 
dolichognatha , and dactylus tapering more regularly toward the extremity than in that species. In the 
female the carpus is longer, the propodus narrower, non-granulate, the fingers do not gape. The 
smaller cheliped is lacking in all the specimens. In the carpus of second pair of legs the first joint is 
the shortest, being only between one-third and one-fourth the length of second joint. Third joint a 
little more than one-half the second, fourth joint a little longer than the first, fifth joint intermediate 
between the third and fourth. The seventh abdominal segment more tapering than in dolichognatha; 
it has two small spines on each side of its dorsal surface near lateral margin; they are near together 
and near the middle of the length of segment. The two terminal spines are longer than in the type 
species. Caudal laminae broader and more oval than in dolichognatha. 
Dimensions of male: Length from frontal margin of the carapace to tip of seventh abdominal 
segment, about 14.2 mm.; length of carapace, 4.4 mm. 
Type locality, off Aguadilla, 137 fathoms, sand, mud, and shells, station 6055, 2 males, 1 female 
(Cat. No. 23786). Also taken at Mayaguez Harbor, 12 to 18 fathoms, station 6061. 
The specific name is given in honor of Dr. B. W. Evermann, chief naturalist of the Fish Com- 
mission expedition to Porto Rico. 
