JOUENAL 



OF THE 



ROYAL IIOROSCOPIOAL SOCIETY. 



FEBEUAEY 1887. 



TEANSACTIONS OF THE SOCIETY. 



I, — Twenty-four New Sjjecies of Botifera. 

 By P. H. G-ossE, F.R.S., Hon. F.E.M.S., &c. 



CSead 8ih December, 1886.) 

 Plates I. and II. 



The following species of Rotifera were discovered either too late to be 

 included in Dr. Hudson's work, or since ttiat work was published. 

 They are described with brevity ; but, I hope, with precision sufficient 

 for identification and differentiation. 



1. Taphroeampa selenura. Body thick towards the head, tapering 

 towards the foot ; marked with strong articulations like T. annulosa ; 

 brain opaque, with a distinct red eye on its inner side ; caudal fork a 

 wide crescent; trophi as in Notommata aurita. Length 1/100 in. 

 Lacustrine. 



Since the note in H. and G. Eotif., i. 17, I have made repeated 



EXPLANATION OF PLATES I. and II. 



Fig. 1. — Taphrocampa selenura ; dorsal. 

 -Diijlena (?) silpha ; lateral. 

 -Notommata ovuhim ; a, dorsal ; 6, lateral. 

 -Furcularia melandocus ; dorsal ; c, toes, enlarged. 

 -Mastigocerca hicristata ; lateral ; d, ideal section. 

 -Diaschiza (?) cupha ; lateral ; e, one toe, enlarged. 

 -Mytilia Teresa ; dorsal ; /, one toe, enlarged. 

 -Pterodina reflexa ; posterior. 

 -Notholoa jngosa ; dorsal. 



„ rhomboidea ; dorsal. 



„ spinifera; dorsal. 



„ polygona ; dorsal, 

 -Furcularia lophyra ; lateral. 



- Callidina pigra ; dorsal ; g, spurs, enlarged, 

 -Synchseta longipes; dorsal. 

 -Euchlanis oropha; lateral; h, transverse sections, tlie outer at *, the inner 



at t, of upper figure. 

 -Distyla st7-iata ; dorsal, 

 -Asplanchna eupoda ; lateral. 

 -Salpina marina {lorica) ; lateral, 



-Diaschiza (?) rhamphigera ; lateral ; i, trophi, dorsal ; j, lateral, 

 -Colurus Dumnonius ; lateral; h, ventral. 



- „ dicentrus ; lateral ; I, termination of body. 



- „ grallator ; lateral. 

 —Monura micromela ; lateral : m, posterior. 



