Bulletin of the Bureau of Fisheries . or end of body; two rows of tubercles on either side of median crest extending from thefirst thoracic to third abdominal segment; in lower row but one tubercle to each segment, and in theupper row one tubercle to each thoracic segment, but three upon each of first three segments of abdo-men; coxal plates very large, first three narrow, acute below, antero-lateral angle of fourth andpostero-lateral angle of fifth coxal plates strongly produced, acute, and bent outward; first two gnath-opods similar in size and shape; hand oblong, small, palm only slightly o
Bulletin of the Bureau of Fisheries . or end of body; two rows of tubercles on either side of median crest extending from thefirst thoracic to third abdominal segment; in lower row but one tubercle to each segment, and in theupper row one tubercle to each thoracic segment, but three upon each of first three segments of abdo-men; coxal plates very large, first three narrow, acute below, antero-lateral angle of fourth andpostero-lateral angle of fifth coxal plates strongly produced, acute, and bent outward; first two gnath-opods similar in size and shape; hand oblong, small, palm only slightly oblique; third and fourthpeneopods with basal joints deeply excavated behind, forming grooves with sharp margins- tilthperceopods shorter than fourth, basal joint laminately expanded behind, narrowing in distal half; uropods with flattened subequal lanceolate ramiwhich are larger than peduncles; telson broad,w ith a triangular notch at , 30 mm. Arctic regions and North Atlantic Ocean;New England, off Head Harbor, 50 Acanthozone cuspidata (Lepechin). Body covered with numerous large the thorax the spines are arranged in fiverows, one median dorsal row of very largespines,a lateral row of large nearly horizontal spines oneither margin, and a row between these and themedian dorsal spines; lirst thoracic segment with a large spine projecting nearly horizontally over thefirst three abdominal segments with a very large median spine and several spines on either Acanthozone cuspidata head; 492 BULLETIN OF THE BUREAU OF FISHERIES. side upon posterior margin; fourth segment with a small median spine and, as in the fifth segment,with a recurved hunk at the postero-inferior angle; rostrums small; first basal joint of first antennaeproduced distally into a spine; first three coxal plates acuminate below, first bent forward; fourth withtwo inferior spinous projections; gnathopods similar, hand long, narrow, with a short, nearly trans-verse palm; basal joints of t
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfisheries, bookyear19
