COPEPODS OP THE WOODS HOLE REGION 261 



GOFFINELLA STYLIFER, new species 



Plate 13 



Occwrence. — Ten specimens, including both sexes, were washed 

 from the sand of Buzzards Bay bathing beach at Woods Hole, July, 

 1927 (male holotype, U.S.N.M. No. 63432) ; a few females were also 

 obtained from the sand of the Nobska bathing beach on Vineyard 

 Sound. 



Color. — Body transparent with a decided whitish tinge; eggs 

 greenish blue and opaque ; no eye visible. 



Female. — Metasome somewhat compressed, cephalic segment as 

 long as the three following segments combined, its epimeral portions 

 turned downward and covering the bases of the mouth parts and 

 first legs. Rostrum large, tongue-shaped, well defined at its base, and 

 carrying a small seta on each lateral margin. Free thoracic segments 

 diminishing in length backward, the fifth segment half the length of 

 the second. Urosome three-fourths as long as the metasome ; genital 

 segment distinctly divided; anal segment a little shorter than the 

 penultimate segment; caudal rami slightly longer than wide, the 

 inner apical seta as long as the anal segment and caudal ramus com- 

 bined. The lateral seta of each ramus is transformed into a stout 

 acuminate stylet, attached to the distal corner of the ramus, as long 

 as the apical seta and extending outward at right angles to the axis 

 of the ramus. 



The first antennae are slender, the second segment the longest, the 

 four terminal segments only half the length of the four basal ones ; 

 the aesthetask is slender and reaches but little beyond the tip of 

 the antenna ; the two end segments are setose on both margins. The 

 endopod of the second antenna is 2-segmented, the basal segment 

 two and one-half times as long as the distal segment; the exopod 

 is minute, attached to the side of the basal endopod segment near 

 its center, and tipped with two tiny setae. The second maxilla is 

 3-segmented, with two terminal clawlike spines; the maxilliped is 

 well developed, the second segment moderately swollen and fringed 

 with scattered hairs on its inner margin, the claw longer than the 

 second segment, jointed near its base and bipartite at its tip, with 

 three small spines on its inner margin. 



The endopod of the first legs is 2-segmented and longer than 

 the exopod, its basal segment one-half longer than the terminal, 

 fringed with hairs on its inner margin but without an outer seta. 

 The end segment has three apical setae and a minute one on the 

 outer margin ; the middle apical seta is stouter than the others and 

 blunt at its tip. The first exopod is 3-segmented, the segments the 

 same length and without inner setae. The rami of the three fol- 

 lowing pairs of legs are 3-segmented, with the seta« much reduced 



