268 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
however, sometimes presents a trace of a slight notch. This 
variety, which occurs in two specimens in the collection, has 
been figured by Heller, J. ¢. pl. x. fig. 2. 
In very large specimens the interocular portion of the rostrum 
appears more distinctly carinate than in younger individuals. 
The largest individual of the collection is 58 millim. long from 
the tip of the rostrum to the end of the terminal segment, and 
its larger hand is precisely half as long, measuring 29 millim. 
In this specimen the carpopodite of the second leg measures 
14 millim., whereas the two first joints have about the same 
length. 
The other specimens are mostly of medium size, measuring 
30-35 millim., but two of them are only 10 millim. long. . 
A. Edwardsii not only inhabits the whole Indo-Pacific, but 
also a part of the Atlantic region. It has been observed in the 
Red Sea, the whole Indian and Pacific Ocean to the west coast 
of America, and on the eastern coast of this continent from 
North Carolina to the Abrolhos (Brazil). 
150. ArpHevs Hippotuor*, n. sp. (PI. XVII. figs. 1-5.) 
Three adult specimens of this interesting form were collected, 
a male and an ova-bearing female at Sullivan Island, and another 
male in King Island Bay. 
A. Hippothoé is most closely allied to A. parvirostris, Dana, 
and to A. Hdwardsii, Aud., in its general appearance and in the 
structure of its anterior legs; but it may be readily distin- 
guished from the former by the basal joint of the outer antenne 
presenting no trace of an external spine, and from A. Hdwardsii 
by the meropodites of the legs of the third and fourth pairs 
being armed with a short acute spine at the distal ends of their 
inferior margins. 
The body closely resembles that of A. Hdwardsi, Aud., the 
common Indian species. The rostrum is short, acute, and reaches 
a little beyond the middle of the first joint of the peduncle of 
the upper antenne. As in A, Hdwardsii, it arises from the front 
margin of the carapace; the interocular portion, however, is 
more distinctly carinate than in specimens of A. Hdwardsii of 
the same size, being much compressed and separated by rather 
deep grooves from the orbits, which are unarmed. This inter- 
* Hippothoé, one of the Nereids. 
