Dr. A. S. Packard on new North-American Phyllopoda. 335 



stoma as in ^. cancriformis ; the first pair of maxillipeds are of 

 about the same length as in cancriformis ; but the joints are 

 more numerous and smaller, there being 80 joints in the longest 

 branch, while in a specimen of cancriformis four times as large 

 there are 50. The telson is longer than in cancriformis^ but the 

 number and arrangement of tlie spines is the same, as is the 

 underside. The stylets are scarcely as long as the body, while 

 in cancriformis they are considerably longer, and the fine spines 

 are a little stouter. Number of segments beyond the hind edge 

 of carapace 19 (in cancriformis 19) ; number behind last pair of 

 feet 7 (in cancriformis 6). Length of body 1*00; length of 

 carapace along the middle *64 ; length of carina '45 ; distance 

 from end of carina to front edge of carapace '36 ; length of 

 caudal stylets '95 ; diameter of ovisac "15 inch ; ovisacs situated 

 on the eleventh pair of maxillipeds, as in all the other species 

 of the genus known to me. 



" Collected from a stagnant pool in a jungle four days after 

 a shower of rain had fallen. For five months previous to this 

 rain there had been no rain upon the earth. Himalaya Moun- 

 tains, North India, near where the Sutlege river debouches into 

 the plains. April 1870." Mus. Comp. Zoology, Cambridge. 

 Two specimens. 



Beanchipodid^. 



StreptocepTialus texanus, n. sp. — The male differs from S. si- 

 milisj Baird, from St. Domingo, to which it is otherwise closely 

 allied, in the longer branch of the inferior antennge being much 

 longer and slenderer at tip (according to Baird's figure), while 

 the shorter branch is much narrower. In the female the ovisac 

 reaches to the penultimate segment of the abdomen, while ac- 

 cording to Baird's figure it scarcely reaches to the end of the 

 fourth segment from the end ; and the second antennae are repre- 

 sented as being much larger than in our species. The male 

 organs arise from the eighth segment from the telson and the 

 fifteenth of the body, and are simple, unarmed, slender, cylin- 

 drical, very long, and curled around (in alcoholic specimens) so 

 as to touch at their insertion. Total length (male) "65 ; length 

 of longer appendage of second antennaj "17 inch ; caudal stylets 

 •13 ; length of male organs when extended "13 : female "55 long, 

 caudal stylet "11, ovisac "20 inch. " Waco, Texas. Found in 

 the summer in the same pool as the Limnadia was taken. The 

 pool was formed by the summer rain, and as it had passed a con- 

 siderable time in a dry condition, I suppose this species appears 

 much later, or at least not at the same time as the Limnadia^ 

 (G. W. Belfrage.) It also occurred in April, the females having 

 eggs, like those found in the summer of the year previous. 



