MELICERTAD.E. r, 



yelloiu, strewed with round brown granules ; transvcrsclij striated on the iiisido ; foot 

 forked. 



M. Weber has drawn this Limnias with three antennae all on the same surface ' : 

 one long, un-paired ; and the paired two, sliort. As such an arrangement is unknown 

 in the Meliccrtadce, I have not reproduced his figure ; especially as he himself states 

 that all three are on tlie dorsal side. The foot, too, is described as " forked," and the 

 foot-glands as discharging their secretion through an aperture in the angle of tlie fork. 

 This structure and arrangement arc milike those in the foot of any other Floscule. 

 The whole account requires confirmation. 



length. Not recorded. Habitat. Neighbourhood of Geneva (Weber). 



Limnias shiawasseensis, Kellicott (181). 



SP. CH. Seven horny processes on tlie dorsal surface bcloio the corona ; ventral 

 antennae long, nearly equal to the diameter of the tube ; tube slightly increasing in 

 breadth from bcloiu upwards, clear beloiu, covered above by dark fioccose, not smooth or 

 annulate, but beset with transverse parallel roios of 7ninute raised points. 



Dr. Kellicott found this apparently rare Rotiferon, in July 1888, on Mi/riophyllum in 

 the Shiawassee river at Corunna, Michigan, U.S. It resembles cornuella in the length 

 of its antennffi, but there are several points of difference in structure and habit between 

 the two. " The coronal discs, when acting, are not pushed so far above the tube as in 

 the other species— the lower edges just clearing the margin of the tube ; the discs are 

 held nearly vertical, and the long ventral antennas stand out considerably higher than 

 the discs and at a sharp angle with the tube. The antennae are slender, nearly straight, 

 and terminated by a slender cone which bears a brush of setfe ; when the lobes are with- 

 drawn, and the corona is just concealed, the antennje stand up above the tube, and the 

 extremity and brush of setiE are then seen to be invaginated. The corneous denticles 

 [horny processes] are seven in number. In the middle line, just below the dorsal gap, 

 there are two arising from a common base, their apices are obtuse. On each side of 

 these, a little lower, is another with obtuse apex ; this pair points obliquely upward to- 

 wards the uppermost pair. Below these, wder apart, are two more, broad and set 

 obhquely ; and balow this pair, near the middle hne, is another pair, broad and set ob- 

 liquely. The cloaca may be seen thrust up to the rim of the tube, between these pro- 

 cesses, to discharge the fasces. The chin is obscurely lobed at its apex." (Kellicott, 

 loc. cit.) 



Length. Not recorded. Habitat. Shiawassee river, U. S. (Kellicott). 



CEciSTES sociALis, Wcbcr (199). 



SP. CH. Body elongated; corona small, circular; foot, tioicc as long as the body ; 

 teeth, three ; one ventral antenna ; two eyes in the young. 



This CEcistes was discovered by M. Weber, in 1886, inhabiting a parasitic growth of 



profonde ") is meant the deep V-shaped cleft on the oral surface, at the bottom of which the lobes meet, 

 and the whole of whose edge is fringed with cilia, then the term "dorsal" is a mistake for "ventral" ; 

 but if "tehaucrure " means the wide, non-ciliated, gap in the corona, between the lower portions of 

 the two coronal lobes, then, though the term "dorsal "is correct, yet the attribute " profonde " is 

 singularly inappropriate. Most probably the term " ^chancrure " stands for the V-shaped cleft on the 

 oral surface, and for " dorsal cleft " we should read " ventral cleft." 



' The text says that there are " two lateral tentacles," one on each side of the dorsal cleft (" 6chan- 

 crure dorsale "), and, " lower down dorsally, in the median line of the body is one long dorsal tentacle." 

 An inspection of M. Weber's figure (PI. xxvii. fig. 1), however, shows at a glance that the long, unpaired 

 antenna is really meant to be on the same surface as the two, short, paired antennfe ; for it iutercex^ts 

 the view of the ventral (i.e. oral) surface on which the shortest jiair are placed. Moreover, in the same 

 figure, the lower portion ot the coronal loLe, on the spectator's right hand, is curved backward aivay 

 from him ; clearly proving that the surface he is looking at, and on which all three antennie are placed, 

 is the oral, or ventral one. 



