1896. ] FROM THE SANDWICH ISLANDS. 205 
other and to the parietes by a considerable number of ligamentous 
threads. The three septa which come immediately after the 
gizzard are stouter than those which follow; but here, again, the 
increase in thickness is not very marked. 
Pericheta insule. 
©, oviducal pore. , male pore. 
Pp, papilla. 
The pharynx, as is so usual in Pericheta, is beset with numerous 
racemose glands; these extend back as far as the sixth segment. 
The gizzard is rather bell-shaped, diminishing in transverse 
diameter anteriorly, but truncated posteriorly, where it has a 
thickenedrim. The intestine begins abruptly in the xvth segment 
at about the middle of that segment. The ceca extend through 
two segments. The last heart is in segment xiii. 
The sperm-sacs, compact in form, are in segments Xi., xii. as usual, 
The spermiducal glands, also rather compact, commence in xvii. and 
extend as far back as xx. The duct is stout and S-shaped. 
The spermathece are in vi., vii. Each has a diverticulum about 
half its own length, of an elongated oval form. 
Hab. Hong Kong. 
PERICH ETA TRITYPHLA, 0. Sp. 
The length of this species (after preservation in Perenyi’s fluid) 
is 63 mm.; that individual consisted of about 75 segments. 
The seta-formula is as follows :— 
Te VI. XII. XVII. 
25 38 49 49 
