Miscellaneous. 299 



Cladocera : DapTinella brachyura^ Lievin. 



Baplinia mucronata, 0. F. Mlill. 



Copepoda : Cyclops, sp. 



Diaptomus, sp. 



Besides the above-named seven species of Eotatoria the examina- 

 tion of the material from this last basin furnished two other species, 

 which, however, I am unable to identify with known forms. One 

 of them is a Brachionus which stands between Balceri and poly- 

 acanthus, Ehr. On the anterior dorsal margin the carapace bears 

 four spines, as in polyacantlius ; but of these the two intermediate 

 ones spring from a broad base, narrow rapidly into a long uniformly 

 thin process, and are separated from each other by a deep and broad 

 emargination, at least as far as from the shorter lateral spines, 

 which are little more than half their length. On the ventral surface 

 we find no teeth at this part, but in the middle there is a small 

 notch. The place of issue of the foot is furnished with two laterally- 

 placed, pointed, jagged teeth. The general form of the body as 

 compared with the two above-mentioned species is more elongated 

 and only a very little inflated at the sides. Length of the body 

 without the spines 0"836 millim. ; greatest breadth 0-240 millim. 

 This species may be denominated Brachionus lotharing'ms. 



The body of the second species has a cylindrical form, straightly 

 truncated in front, without processes posteriorly, from the termina- 

 tion of the second third (after a previous slight inflation) running 

 out to a point, and passing into two spines of unequal development 

 which originate close together. The right spine is considerably 

 stouter and also rather longer than the left one, which, however, 

 attains the length of the body. At the anterior extremity of the 

 body dorsally two long thin spines, directed backwards at the sides 

 of the body, are attached. Their basal parts are in contact in the 

 middle line of the back. In these also we find an unequal develop- 

 ment, inasmuch as, of these appendages, the right one is longer 

 than the left and at the same time rather stouter. In the preserved 

 specimens I could not with certainty recognize any special muscu- 

 lature for moving this stalkless fork ; but it may function as a 

 locomotive apparatus, as I have met with it in diflerent individuals 

 standing off at different distances from the body, from which we 

 may conclude that it has a certain mobility. This organization 

 would approximate the present wheel-animalcule to the genera 

 Triarthra and Polyartlira ; but I must leave it to a fresh examination 

 of living specimens to decide its reference to any genus. In the 

 definition of the species the unsymmetrical development of the 

 spines may be of value. — Zoologischer Anzeigei', No. 211, December 

 14, 1885, pp. 720-723. 



