MARINE INFUSORIA. 73 



NOTES ON MAEINE INFUSOEIA, 



BY W. SAVILLE KENT, F.L.S., F.R.M.S., ETC. 



Among the treasure trove amassed by the Birmingham Natural 

 History Society during their last summer's enjoyable outing on the 

 Cornish coast, and at the gathering of which said material, availing 

 myself of the kind invitation of the President, Mr. Walter Graham, I 

 ■was permitted to assist, a considerable number and variety of Marine 

 Infusoria were obtained. While none of these are new to science, 

 several of them possess a more than ordinary interest with relation in 

 some cases to their individual plan of structure and affinities, and in 

 others to their marked diversity from the Infusorial types more 

 frequently encountered by non-migratory "Midland Naturalists." To 

 some few of these minute organisms, the produce of one day's wielding 

 of the dredge and towing net, (July 11th,) I here propose to direct 

 attention, accompanying my remarks with delineations of the more 

 important forms. 



Out of the eight types in all it is here proposed to select, the 

 majority, five in number, were found associated with the horny 

 polypidoms of the Hydroid Zoophytes, Polyzoa, and other organic 



References to Plate IV. 



Fig. 1. — Dictynci/sta cassis, empty silioious lorica, showing fenestrated pattern. 



Fig. ±— Dictyocysta cassis, animalcule with extended tentacula ; the fenestrae 

 of the lorica are not represented, in order to give a clear view of the occupant (after 

 Hseckel ) 



Fig. 3. — Tintinnus subulatus. 



Fig. 4. — Ceratiwm fusus. 



Fig. 5.—Zoothamniwm alternans, showing at a, a, a, the larger and asillary 

 reproductive zooids. 



Fig. &.—Zoothamnium dichotomum, showing at a, a, a, the larger transversely- 

 striate reproductive Zooids. 



Fig. l.—Follicularia ampulla, animalcule extended and inhabiting a lorica, with 

 a moderately-produced neck= Lagotia viridis, S. Wright. 



Fig. H.—Follicularia ampulla, empty lorica, with very short neck. 



Fig. 9.—Follicularia ampulla, lorica, with greatly produced neck, exhibiting 

 annular growth markings; Lagotia producta, S. Wright. 



Fig. \Q.—Hemiophrya gemmipara, with tentacles of two orders fully extended. 



Fig. 11. — Hemiophrya gemmipara, with two anteriorly developed buds. 



Fig. 12.— Ophryodendronpedicillatum, proboscidiform zooid.witb characteristic 

 organ extended. 



Fig. 13.— Ophryodendronpedicillatum, with proboscis retracted. 



Fig. 11.— Ophryod$ndronpedicillatum, vermiform zooid. 



Fig. 15.— Ophryodendron multicapitatum, sessile zooid, with four proboscidi- 

 form appendages. 



Fig. IS.— Ophryodendron multicapitatum, stalked zooid, with two proboscidiform 

 organs, one immaturely developed vermitorm zooid, and two supplementary 

 spheroidal buds. 



Fig. 17.— Asterionella Bleakeleyii (?) showing characteristic spiral disposition 

 of the associated frustules. 



Fig. IS.— Asterionella Bleakeleyii (?) a few detached frustules, exhibiting a 

 substellate disposition. 



Fig. 19.— Asterionella Bleakeleyii, single frustule. 



* The full title of this paper is " Notes on Certain Marine Infusoria, obtained 

 during the Summer Excursion (1879) to Falmouth of the Birmineham Natural 

 History and Microscopical Society, communicated by W. Saville" Kent, F.L.S., 

 F.U.M.S., and Honorary Corresponding Member of the Birmingham Natural 

 History and Microscopical Society.'' It was read before the Society January 2Cftb 

 15S0, 



