On some Indian Phyllopodu. 



in length the first 2 caudal segments combined; marsupial 

 pouch of moderate length, scarcely reaching beyond the an- 

 tepenultimate caudal segment, and tapering somewhat distally, 

 extremity not bent. Caudal rami of same structure in the 

 2 sexes, narrow lanceolate in form, and in male about equal- 

 ling Vs of the length of the posterior division, edges fringed 

 all round with plumous setæ. Antennæ in female simple, 

 blade-like, bluntly rounded at the tip; those in male of 

 enormous size and very complicated structure; basal section 

 having at the end inside the usual claw-like process, outside 

 a transverse row of 4 large, curved, digitiform appendages; 

 median section about the length of the basal one, and ex- 

 hibiting inside along its distal part a row of slender spines ; 

 terminal section with the palm comparatively short and 

 simple, digiti very unequal, the anterior one being much 

 smaller than the posterior, with an unguiform recurved lateral 

 projection inside and a small knob-like protuberance outside, 

 distal part spiniform, posterior digitus rather thick at the 

 base, and cleft into 2 slender rami, the one simple, curving 

 anteriorly, the other considerably larger and unequally bi- 

 furcate at the end, being irregularly denticulated in its proxi- 

 mal part. Branchial legs with the basal plate serrate, outer 

 lobe of endopodite broadly rounded at the end, exopodite of 

 moderate size, epipodite in last pair much larger than in the 

 others, lamellar and finely serrate at the end. Length of 

 female 18 mm., of male 22 mm. 



Remarks. — Of this form hitherto only a solitary male 

 specimen has been found. It was briefly mentioned by Baird 

 in the above-mentioned Journal, and a not very accurate figure 

 of the animal seen from the side, and another of the head 

 with the antennæ seen from the front were subjoined. The 

 peculiar dichotomus character of the male antennæ suffice 



