1921] Schmitt: The Marine Decapod Crustacea of California 183 
Family Dromipar 
Carapace subglobular, rarely flattened; no lineae anomuricae (a pair of longi- 
tudinal suture lines on the carapace); sternum of female traversed for more or 
less of its extent by two obliquely longitudinal grooves. Eyes and antennules 
almost always retractile into common orbito-antennulary pits. External maxilli- 
peds generally operculiform. Legs of moderate size, fourth and fifth pairs short, 
subdorsal in position, and furnished with a small, hook-like nail. Sixth segment 
of abdomen generally with rudimentary uropods. 
Genus Dromidia Stimpson 
Carapace convex and pilose, the hair being often of considerable length; front 
narrow, hepatic regions more or less concave, or excavated anteriorly. Sternal 
sulci in the female approximated at their extremities in either a single or more 
or less bifurcated tubereuliform projection, situated between the bases of the 
chelipeds. 
Dromidia larraburei Rathbun 
Plate 33, figure 1 
Dromidia sarraburei Rathbun, Proce. U. 8. Nat. Mus., 38, 553, pl. 48, fig. 4, 
1910 (error for larraburei; named for Seftor Don Carlos Larrabure y 
Correa). 
Dromidia segnipes Weymouth, Stanford Univ. Publ., Univ. Ser., no. 4, p. 15, 
VOLE Tp aiesh da Ie hloy 
Characters.—Densely covered with fur except ends of fingers and dactyli. 
Carapace high, subglobular; anterolateral margins directed toward the buccal 
angles and armed with four to six small teeth or tubercles; from the last tooth 
an oblique furrow runs across the branchial region; front vertical, tridentate. 
Chelipeds short, stout, equal; fingers deeply channeled inside, gaping at base. 
First and second pairs of ambulatory legs broad, dactyli with curved horny tip 
and a row of spines beneath; third and fourth pairs narrower, subdorsal, and 
prehensile, fourth shorter, dactyli strongly curved, fifth recurved, both folding 
against a spinous process on the propodus. 
Dimensions.—Type, ovigerous female: length of carapace 28.2 mm., width 
30 mm. Of specimens taken in Monterey Bay, by Weymouth, male: length of 
carapace 15 mm., width 15.7 mm., length of antennal flagellum 11 mm.; female: 
length of carapace 15.7 mm., width 16.3 mm., length of antennal flagellum 10 mm. 
Color.—In alcohol yellowish tan, tips of chelipeds flesh color; color in life 
similar (Weymouth). 
Type locality—Bay of Sechura, west of Matacaballa, Peru, depth about 
5 fathoms. 
Distribution.—Also from Monterey Bay and Long Beach, California, Magda- 
lena Bay, Lower California, and the Galapagos Islands, shallow water. 
Family HomMoumar 
Carapace longer than broad, more or less quadrilateral, ovoid, or urn-shaped; 
lineae anomuricae (a pair of longitudinal suture lines on the carapace) usually 
present; sternum of female not longitudinally grooved. Eyes not retractile into 
orbits nor antennules into pits. External maxillipeds pediform or subpediform. 
Legs long and slender, only fifth pair dorsal and reduced in size. Uropods wholly 
absent. 
