518 PROCEEDINGS OF THE NATIONAL MUSEUM. vox., xm. 



downward but not so far as the middle of the following joint and 

 furnished with ten to twelve plumose seta?. 



Infero-posterior angle of third abdominal segment nearly a right 

 angle and not produced. Fourth segment with a dorsal depression 

 followed by an elevation, which does not cud posteriorly in a tooth. 

 Third uropods with lanceolate flattened rami which are furnished 

 with a few seta 1 ; a few short spines on outer margin of the outer 

 ramus. Telson twice as long as wide, with a notch at the tip of each 

 lobe in which is situated a short spine; the inner side of the notch 

 prolonged into an acute point. 



Length. — mm. 



Locality. — A single specimen from Station 4120, off San Nicolas 

 Island, 32-33 fathoms. 



Type.— Cat. No. 38546, U.S.N.M. 



This species is unusual in having the peduncle of the first antennae 

 very short, with the first and second joints of nearly equal length. It 

 resembles A. cceca, but differs from it, in addition to having well 

 developed eyes, in having a narrower posterior lobe on the basal 

 joint of the last perseopods which is not produced so far downward, 

 in having the elevation on the fourth abdominal segment less high, 

 in having the outer branch of the terminal uropods armed with 

 short spines on the outer margin, and in the distal extremity of the 

 telson. 



HAPLOOPS TUBICOLA Lilljeborg. 



A single specimen from Station 4454, Monterey Bay, 65-71 fathoms. 



BYBLIS GAIMARDII KrjzSyer. 



A single specimen each from Monterey Bay, Stations 454!), 56-57 

 fathoms, and 4551, 46-56 fathoms. 



Family PHOXOCEPHALID^. 



PARAPHOXUS ROBUSTUS, new species. 



Head nearly as long as the first three segments of the thorax, the 

 hood evenly convex above and subacute at the tip. Eyes very large 

 in the male, nearly meeting above, small and oblong in the female. 

 First antenna' with the second joint nearly as long as the first; fla- 

 gellum shorter than the peduncle; secondary flagellum over half the 

 length of the primary. Second antenna' about the same in the two 

 -exes, about as long as the first, the penultimate joint expanded, fur- 

 nished laterally with a row of several spines, and with numerous 

 long plumose seta' on the lower margin; last basal joint with two 

 groups of lateral spines; flagellum seven-jointed and scarcely as long 

 as the last two joints of the peduncle. Mandibles much as in P. 

 oculatus. Maxillipeds with the outer plate reaching nearly to the 



