113 



forata, ovato-conica, solidula, IcBvigata, vix nitidula, cerea ■ 

 spira^ convexo-co7iica, acuta ; anfr, h\ vix convexiusculi, uiti 

 vms ^ longitudims paulo superans, rotundatus, perforationem 

 punctiformem canna callosa obtusa cimjens ; apertura parum 

 obbqua,angulato-omlis: perisi. simplex, vectum, margine colu- 

 mellan brevissime fornicato-patente. 



Long. 4i diam. 2| mill. 



Hab. Norfolk Islands. 



30. Hydrocena (Omphalotropis) Guamensis, Pfr. T per- 

 forata, ovato-conica, solidula, conferte striata, opaca, carnea 

 rufo submarmorata et fasciata ; spira conica, acuta ; sutura 

 subcanahculata ; anfr. 'Ą planiusculi, ultimus spira vix bre- 

 mor, tnfra medium carinatus, circa perforationem carina com- 

 pressa mututus ; apertura parum obliqua, ovalisj perist. tenue 

 margine dextro exj)ansiHsculo, basali in carinam umbUicalem 

 producto, columellari vix dilatato. 



Long, 61, diam. 4 mill. 



Hab. Isle of Guam. 



31. Hydrocena (Omphalotropis) Navigatorum, Pfi-. T 

 anguste perforata, ovato-turrita, solidula, fvsca, costis subdi- 

 stantibus, albts, undid^tis mtinita ; spira elongato-conica, acu- 

 tiuscula; an/r 6 convexi, propę suturamflocarinati, ultitnus^ 

 longitudims subeequans, supra carinam impressus, circa perfo- 

 rationem carina compressa munitus ; apertura vix obliqua sub- 

 etliptica : perist. simplex, rectum, margine columellari rix 

 patulo. 



Long. 6i diam. 3f mill. 



Hab. Navigators' Islands. 



3. On THE Animal and Bark of the genus Antifathes By 

 Dr. j. e. Gray, F.R.S., F.L.S., V.P.Z. and Ent. Soc. etc. 



(Radiata, PI. VI.) 



In the ' Proceedings ' of the Society for 1832, p. 41, I described 

 tor the first time the bark and animal oi Antipathe^ dichotoma from 

 Madeira. 



It is to be observed that this species has been separated from the 

 others of the genus because the surface of the axis is smooth and 

 not covered with a number of minute, uniform, cylindrical snines 

 Iike the true Amtipathes, and has been called for that reason Leio- 

 pathes; and it has been further stated, that though Leiopathes has 

 a distmct bark and animal likę Gorgoniadce, this may not be the 

 case with the normai species of the genus, some of which had been 

 de^nbed by Elhs as liaving a very peculiar klnd of animal. 



To set this question at ręst, I have carefully esamined all the spe- 

 cimens oi Antipathes which have come under my observation, and 

 No. CCCXXXIV.— Proceedings of the Zoological Society. 



