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University of California Publications in Zoology L v o L - 23 



Pandalus danae Stimpson 



Plate 13, figure 3 



Pandalus danae Stimpson, Proe. Boston Soe. Nat. Hist., 6, 87, 1857; Jour. 

 Boston Soc. Nat. Hist., 6, 502 (62), pi. 21, figs. 6, 7, 1857; Rathbun, 

 E., The Fisheries and Fishery Industries of the U. S., sec. 1, p. 281, 

 1884; Holmes, Occas. Papers Calif. Acad. Sci., 7, 209, pi. 4, figs. 61, 

 62, 1900; Rathbun, H. A. E., 10, 47, fig. 13, 1904. 



Fig. 25. Pandalus danae, $, natural size; a, dorsal view of anterior end (pro- 

 portional lengths of joints of antennular peduncle are not exact in lateral view, 

 use this view) ; b, lateral view. 



Characters. — A rather stout species. Surface finely pitted. Rostrum a little 

 longer than the carapace (from one-fifth to one-eighth longer), distal two-thirds 

 directed obliquely upward. Median dorsal spines ten to twelve, movable, about 

 half of them on the carapace, the posterior spine a little behind the middle; 

 terminal half of rostrum unarmed above, apex trifid; lower margin six- to eight- 

 spined, the spines diminishing anteriorly; lateral carinae moderately prominent. 

 Antennal scale from three-fourths to five-sixths as long as carapace, tapering to 

 the extremity, the laminar part of which is rounded, and much exceeded by the 

 spine. Right leg of second pair (exceeds antennal scale) may slightly exceed or 

 fall short of the tip of the rostrum; merus slightly annulated; carpus with from 

 eighteen to twenty-one joints, those of the proximal half very indistinctly marked; 

 left leg one-third or nearly half again as long as right leg; merus and distal 

 portion of ischium faintly annulated; about sixty carpal segments. Sixth segment 

 of abdomen one and two-thirds as long as wide. 



Dimensions. — Type: length 63.5 mm. The specimens taken in connection 

 with the Bay Survey ranged between 55 and 114 mm. in length, exclusive of 

 rostrum. 



Type Locality. — Puget Sound. 



Distribution. — From Sitka, Alaska, to San Francisco, California, 10 to 101 

 fathoms. 



