FLOSCULARIAD.E. 61 



sentoil to him so that its upper ami unJov surfaces were prnjocted on eaeli oUier. With 

 a modern binocular and dark-field iUumination, no tyro would fail to describe correctly 

 the cup with its five knobbed lobas, Ehrenberg credits this species with two "clear 

 spaces" that he considers to be gastric gla'ids. I have mile frequent search for such 

 glands, but cannot find them; Ehrenberg's "cleir spikes" are probably the siniU 

 bulbs, the rudiments of a mastax, in which the jaws are inserted. 



It is most probably Eichhorn's " Der Fiinger " (PI. B, figs. 15, 10), and, if so, it is 

 the earliest known Floscule, having been discovered as long ago as 1767. Unluckily, 

 Eichhorn has given two other drawings of it, one with nine, and one with ten knobbed 

 lobes ; but, as ho complains of the difficulty of rightly understanding and drawing it, 

 it is possible that these numerous lobes represent only the puckers of the half-expanded 

 corona. This is a very pretty species, and, as Eichhorn well says, " no lightning 

 can dart out of the clouds through the air more swiftly " than this little animal can 

 contract upon its prey. Owing to its small size, however, and its lack of transparency, 

 it is not well adapted for the investigation of the internal organs of the Floscules. 



Length. From ,-.'„ to y,5„ inch ; average ^V- Habitat. Fresh waters everywhere 



F. C0KNUT.\, Dobic. 

 (PI. I. fig. 7.) 



Ploscularia cornnta . . . Dobie, Ann. Nat. Hi.^t. 2 Ser. vol. iv. 1840, p. 233. witli pi. 



,, ,, ... Gosse, Po2))(tor,S'c('. /ici'. vol. i. 1802, p. 108, pi. i.\. tig. 0. 



• „ „ ... rt'Udekem, L'InstUi(t, t. xix. 18.51, p. 222. 



Floscnl-aria apxiendictdaia . . Leydig, Ueb. d. Ban d. Rdderth. 1854, p. 3, Taf. i. fig. G. 



FJoscnlaria cornuta . . . Pritchard, Infusoria, 1801, p. G76, with fig. 



... Cubitt, il/on. il//cr. J. vol.v. 1871,p. 170, pi. Ixxxi. fig. 7. 



Floscularia appcndictilata . . B.artsch, Rot. Hunriaria, 1877, p. 24, Tab. ii. fig. 19. 



. . Ecl;stein, Sieb. u. KoU. Zeits. Bd. xxxix. 1883, p. 344, 

 Taf. xxiii. figs. 1-4. 



SP. CH. Lobes _/?i'c, triangular knobbed ; dorsal lobe with flexible process . 



This species was first described by Dr. Dobie [loc. cit.) and was afterwards re-named 

 as a new species by Dr. Leydig (loc. cit.). It is like F. ornata, but possesses at the 

 back of the dorsal lobe a curious flexible process, which is probably an organ of touch, 

 though it does not appear to bear setas, or to have any opening. It rises from a swollen 

 base just below the knob, and is suddenly bent over the latter, and then timaed up again 

 so as to point forwards and clear the knob. It occasionally moves a little, and slowly 

 alters its shape, taking often an undulating form ; but it is not moved about like the 

 antenna of Cephalosiphon or oi Rotifer macroceros : it reminds one rather of the slow 

 bendings of the dorsal appendages of F. Hoodii. The eyes cannot be easily seen in the 

 adult, but I have succeeded in exhibiting both together by condensing a strong lamp- 

 light on the dorsal surface. 



Leydig (loc. cit.) describes and figures the contractile vesicle but places it away from 

 the intestine on the ventral side. 



Length, cir. t.}^ inch ; Scotch specimens up to -,',-; inch. Habitat. Widely dis- 

 tributed. 



F. CYCLOPS, Cubitt. 



(PI. I. fig. 6, and PI. D. fig. 2.) 



Floscularia cyclops . . . Cubitt, Man. Micr. J. vol. vi. 1871, p. 83, pi. xciii. figs. 1, 3. 



SP. CH. Lohes fire, hiobbed , very short, variable in length, hul sometimes with the 

 knobs almost seated on the rim of the coronal cup ; the dorsal lobe rather the longest 

 and stoutest ; setae radialimj from the knobs. 



f2 



