VERMES. 
dSG 
ROTIFERA. 
Bartsch (/. c.) classifies the Rotatoria as follows : — 
Order I. Enterodela. 
With a stomachy intestine, and anus. 
Earn. 1. FLOscuLARiNiE, Bartsch (=>Tubicolarinaj Carus,= 
Monotrocha and Schizotrocha, Ehrenh.). Form clavate ; foot 
long, annulated ; ciliary organ like the corolla of a flower ; 
usually sedentary animals, pfaced in a sheath. {Floscularia and 
Melicerta.) ■ 
Fam. 2. Hydatin^a, Ehr. (s. str,). Body-envelope saccular, 
soft, varying in form from cylindrical to conical ; foot and its 
terminal styles short, in part not retraetile. {flydatina^ Pleuj'o^ 
trocha, Synchcata^ Notommata (incl. Eosphoraj Elir.), and Di- 
glena,) 
Fam. 3. Longiset^, Bartsch. Skin soft or firm ; body vary- 
ing in form from cylindrical to oval ; foot very much reduced ; 
terminal styles one or two, long, setiform. {Distemma, Rattulus, 
Furcularia, and Monocerca.) 
Fam. 4. Scariuina, Cams. Foot long-jointed, frequently 
with long spines and points, not retractile ; skin soft or hardened. 
{Scaridium and Dinocharis.) 
Fam. 5. Philodin^a, Ehr. Body fusiform ; foot retractile, 
like a telescope, forked at the end ; one cervical movable palpus. 
(Caliidina, Philodina, Rotifer, and Actinurus.) 
Fam. 6. Loricata, Bartsch [=Brachionea, Carus,=J5^wc^/«- 
nidota and Brachioncea, Ehr.,= Dinocharis), With a hard 
carapace sharply separated from the head and foot j soft parts 
retractile. (Euchlanis, Lepadella, Metopidia, Brachionus, Mono- 
styla, Pterodina, Anurcea, Salpina, and Colurus.) 
Order II. Gasterodela. 
Fam. 7. Ascomorpha, Perty. Body short, cylindrical, trun- 
cated in front, rounded off behind ; no intestine or anus ; one 
cervical eye. {Ascomorpha.) 
0. CuBiTT (M. Micr. J. vi. pp. 1C5-1G9) objects to the usual terminology 
emplo 3 'ed in describing the structure of the Rotifet'a. He proposes to sub- 
stitute the term vagina for lorica, corona for dish j to employ neural for the 
ganglion side, and hcemal for the opposite j and to call the active vibratile 
appendages of the corona ce’ha, in contradistinction to the setae, which per- 
form an intermittent action when investing the corona. For want of a more 
appropriate term, we must also call the delicate hairs which furnish the pis- 
tons of the antennae cilia. 
The same author (“ On the winter Habits of the Potatoria,” 1. c. v. pp. 1G8- 
172, pi. 81) provisionally divides the members of the loricated families of 
sect. 1 into the solitary fixed and the clustered free, and those of sect. 2 into 
