474 



PROCEEDINGS OF THE XATIOXAL MUSEUM. 



Female. — Body plump and only slightly flattened dorso-ventrally ; 

 head normally held at right angles to the body axis, as in the side 

 view shown in fig. 150. Head elongate triangular, or pear-shaped in 

 dorsal view, narrowed almost to a point anteriorly. 



The first maxillipeds are close to the month tube and have exactly 

 the appearance of an under jaw in side view, as was noted in the case 

 of Brachiella gracilis (p. 4t>5). The second maxillipeds are stout, 

 cylindrical, and three-quarters as long as the entire body: they are 

 not tapered, but are narrowed abruptly at tin' ends into a short petiole 

 which connects with the bulla. The diameter of the petiole is one- 

 third that of the second maxillipeds; the umbrella portion is more 

 than six times the width of the petiole. The genital portion is ellip- 

 tical, only a little longer than wide, and without any traces of seg- 

 mentation. It is considerably wider than the head, but not much 

 longer, and in alcoholic material is usually furrowed longitudinally 

 along the outside of each ovary. 



The egg strings are one-third the diameter of the genital portion, 

 and as long as the entire body; the eggs are of medium size and are 

 arranged in eight longitudinal rows. 



The first antennae arc longer and more slender than in beani or 

 gibber, and are tipped with one large spine and three small ones. 

 The second antennae are not as strongly flattened as in other species, 

 and are bifurcate at their tips. The ventral ramus is a large flattened 

 claw, with two accessory spines on its concave margin; the dorsal 

 ramus is a conical process tipped with three small and strongly 

 curved claws. The mandibles are much shorter than those of beani 

 and not as slender as those of gibber, with the teeth considerably 

 different in pattern from both. 



The first maxillipeds have a strongly swollen basal joint like that 

 in gibber, and a long and slender terminal joint. The terminal claw 

 is stout and strongly curved, and there is an accessory spine on the 

 inner margin of the joint near the base of the claw. These maxilli- 

 peds in their relation to the other appendages are between those of 

 the species already described. They are not as close-to the mouth 

 tube as in gibber, but are considerably closer than in beani and 

 bicauliculata. 



Total length. 5 mm, Length of head, '2 mm.; of genital portion. 

 :'> mm.: of egg strings, 5 mm. Width of head, 1.5 mm.; of genital 

 portion, 2.C> mm.: of egg cases, 0.8 mm. 



Color. — Of preserved material a light orange, deeper over the 

 ovaries; bulla dark brown, sometimes black: egg strings deep orange. 



(falculata, furnished with little claws or talons, alluding to those 

 on the tips of the second antennae.) 



