34 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
Specimens examined—Continued. 
Z 2 No. of speci- 
S 2 mens. 
Locality. ee) 3 
S & a : 
a = | Nature of bottom. = of 
g@ | N.lat. W. long. BY 2 z 
aS my = 
Pe) ~ 5 33 
RD a Ee 
OFF MARTHA’S VINEYARD— | 
Continued. 
[i a ARTE OY SEO ty | 1880. 
go1 | 39 53 GO 70 58 30 | 365 — pn me Oct 2|1. ea 
sie 
938 | 39 51 00 69 49 15 317 | gn. S. M. Aug. 4/3 1 0 
947 39 53 30 W1 13 30 319 | S. M. | Aug. 9 148 245 /191 
994 ; 39 40 00 71 30 00 368 | M. Sept. 8 | 1 
997] 39 42 00 71 32 00 | 335 | yl. M. Sept. 8 | 1 
998 | 39 43 00 71 32.00 | 302) gn. M. Sept. 8 Iwo 
1029 | 39 57 06 69 16 00 | 458 yl. M.S. Sept. 14 ly. 
1882. 
1124 | 40 O01 00 68 54 00 640 fne. S. gn. M. Aug. 26 \10 
1140 39 34 00 71 56 00 374 fne. S. sft. M. P. Sept. 8} 1 
OFF CHESAPEAKE BAY. 
1880. 
898 37 24 00 74 17 00 300 M. Nov. 16 4 
BLAKE DREDGINGS; A. 
AGASSIZ. 
1880. 
306 41 32 50 65 55 00 524 fne. dk. gy. M. 1 ¥- 
809 40 11 40 68 22 00 304 dk. gy. S. M. 4 
322 33 10 00 76 32 15 362 Glob. S. 2 
| | | 
The large number of specimens which have been obtained since this 
species was first described enables me to supplement to a considerable 
extent the original description, drawn from a single specimen from which 
the oral appendages were not removed. 
The labrum, metastome, mandibles, and the first maxillaare essentially 
as in Hupagurus bernhardus. The lobes of the protognath of the second 
maxilla are very nearly as in Hupagurus bernhardus ; the endognath is a 
little longer than in that species, reaching nearly as far forward as the dis- 
tal lobe of the protopod; the scaphognath is very different from that of 
Eupagurus bernhardus, the anterior part being very much larger and nar- 
rowed to a triangular tip reaching much beyond the middle of the endog- 
nath, while the posterior part is elongated, somewhat ovate in outline, 
about two-thirds as long as the anterior, and very little more than half as 
broad as long. The lobes of the protopod and the endopod of the first 
maxilliped are nearly as in Hupagurus bernhardus except that the endo- 
pod is united with the exopod for a considerable distance from the 
base; the endopod itself, however, is very different, being a simple, un- 
segmented lamella, shorter than the endopod, broad and truncated at 
the extremity and setigerous along the outer and terminal edges. Just 
back of the base of the exopod the edge of the protopod is setigerous 
and projects laterally in a slight prominence apparently representing the 
epipod. The second and third (external) maxillipeds are essentially as 
in Hupagurus bernkardus. 
