1868.] DR.W. BAIIID ON THE GEPIIYREA. 81 



cept at the thickest portion. The extremity of the proboscis, con- 

 taining the tentacular filaments, in the only specimen we possess, is 

 withdrawn completely, so that it cannot be seen. The body is of a 

 subcylindrical form, and is roughly clathrate, the longitudinal ridges 

 being close set, and the circular strice cutting rather deep, and form- 

 ing, as it were, small tubercles along the longitudinal ridges, which 

 are especially prominent near the base of the proboscis. In several 

 places it is very much constricted, the constricted parts in one or 

 two places being very narrow*. The caudal extremity is of an oval 

 slightly inflated form, and densely roughened with crowded small 

 tubercles. The general coloiu- of the body is brown, the small dots 

 or tubercles on the proboscis being of a deeper hue. 



Hab. Sir Charles Hardv's Island, North Australia (/. B, Brookes, 

 Esq.). ' B.M. 



11. Sll'UNCULtIS ^NEUS, S]). UOV. 



Coi-piis cyUndricum, gracile, antice attcnvatmn, postice crassins, 

 fusiforme, reticulatiim, in parte anteriore comtciatimi, deinde 

 Icevius et minute (/ranulatum, cipice caudali cvali, Icevi, litcente ; 

 proboscis brevis, l(cvis, parte anteriore corporis crassior ; color 

 albus, aneo lucens. 

 Longit. corporis 6| unc. ; crass, part, anter. 1 h lin., part, posterior. 

 4 lin. ; long, probos. 6 lin., crass. 2 lin. 



The proboscis in this species is much thicker than the upper or 

 anterior part of tlie body ; so that it is difficult to imagine how the 

 animal could withdraw it within its body, and "where it could pack 

 it," as Professor Forbes says of another species. It is smooth -look- 

 ing, but when examined with a glass we see it ringed or annulated 

 and finely reticulated. The oral cirri or tentacles are not visible in 

 the only specimen we possess. The body is slender, ringed, the 

 rings or annulations being very close together, small, and finely 

 but distinctly reticulated across. The upper extremity is strongly 

 corrugately reticulate, the middle portion less distinctly so, and the 

 caudal almost smooth. Scattered over the surface we see a good 

 many small warty-looking tubercles. The upper extremity is narrow, 

 the body gradually enlarging in size as it descends, so tiiat at the 

 caudal extremity it is three times as large as anteriorly, and is of 

 a fusiform conoidal form, the warty tubercles at the same time being 

 larger there than elsev/hcre. 



The general colour is nearly white, except towards the caudal ex- 

 tremity, where it is very shiny with an iridescent metallic lustre. 



Hab. New Zealand {Mr. Ciminf/'s Collection). B.M. 



12. SiPUNCULUS EXIMIO-CLATHRATUS, Sp. nOV. 



Corpus cyUndricum, infra medium coarctatum den.-^e clathratum, ex- 

 iremitatibus inflatis, Icevitisculis, iridescent/bus ; proboscis bre- 

 vis, crassiuscula, muricala ; color gi'iseiis. 



Long. 2i unc. ; crassit. in medio 3 Hn., ad extremitates 5| lin. 



* This may, to a considerable extent, be iiroduced l\v tlie spirit in wliich the 

 animal lias been immersed. 



Proc. Zool. Soc— 18()8, No. VI. 



