AMl'HIl'ODA OF SOUTHERN NEW ENGLAND. 



IS:'. 



lanceolate rami; rami of second uropods nearly as long as peduncle; the single ramus of terminal 

 uropods about equal or a little exceeding peduncle, and with terminal and basal segments of subequal 

 length; telson entire, acute; in the male the palm of the hand of second gnathopods somewhat more 

 oblique than in the female and furnished with several spines. Body pellucid; first segment more or 

 less rose colored above, a row of rose-colored or sometimes brownish spots or bars along middle of 

 back; eyes rose colored; joints of peduncle of antennae yellowish at tip; a dark bar across tip of 

 abdomen and base of uropods; gills with a tinge of rose color. 



Length, 2 mm. 



This species was taken in material obtained from piles at Woods Hole, Mass., September, 1900, 

 and among masses of Pennaria from Grassy Island. It is easily recognized by its enormous fourth 

 coxa! plates, which give the animal an appearance much like sum' of the Cladocera. All of the 

 thoracic legs, when drawn up to the body, are entirely concealed by the large coxal plates. This 

 species swims in an irregular, jerky manner, and after swimming but a short distance suddenly stops, 

 flexes the body, and drops to the bottom. Its motions in the water resemble those of the ostracod 

 ( 'iii >ris. 



Stenothoe minuta Holmes, new species. 



Eyes round; antenna? of subequal length and a little over half length of body; first joint of first 

 pair very much thicker than second and nearly as long as second and third; rlagellum slender, about 



StenothoQ minuta. Woods Hole, Mii^ 



twelve-jointed, furnished with short seta.' and olfactory clubs; second antennae with last two joints of 

 peduncle of nearly equal length, rlagellum with somewhat fewer joints than in first pair; mandibles 

 without palp, the cutting edge divided into numerous teeth; first maxillae with inner plate small 

 and bearing a single large seta near distal end; outer plates with five stout spines at distal end, one of 

 which is quite short, and a single, stout, pointed seta at outer end of spine row; inner margin furnished 

 with short seta-; palp two-jointed, distal end of second joint furnished with a few spines and seta.-; 

 maxillipeds with inner plates minute, distally rounded, and having two short sefeie each on distal end; 

 outer plates absent, ischium having but a minute angular point at inner angle; first two joints of palp 



