BY G. 



PLAYPAIR. 



35 



Var. ROTUNDA, n.var. (PI. v., f. 19). 



Lorica corpore utrinque inflato, depresso, lateribus yequaliter 

 rotundatis; collo quadrato ore everso; cauda obtusa subito e basi 

 corporis oriente. 



Long. 28, lat. 17; coll. alt. 8, lat. 6; caud. long. 10, lat. max. 4 /x. 



Parramatta 136. 



Trachelomonas subglobosa, n.sp. (PI. v., f.20, 21). 



Lorica insequaliter subglobosa, fronte leviter deplanata, inter- 

 dum inferne levissirae acuminata; collo lato humillimo; mem- 

 brana interdum scrobiculata, dilutissime fulva. 



Long. 22-26, lat. 22; coll. alt. 2, lat. 6-8 ^. 



Parramatta 136; Duck Creek near Clyde. 



In spite of its obvious likeness to Tr. oblonga var. australica, 

 this "species" is biologically connected with the tailed forms 

 described above, in company with which the two specimens 

 figured were found. All these forms have a tendency to be 

 slightly irregular in outline, and this may be noted here also. 

 The membrane, too, is similar, and the acuminate character of 

 the hinder end in Fig. 20 points in the same direction. 



List of Synonyms. 



Tr. reticulata Klebs, Organ, ein. Flag., p.320, 1881-85, = rr. 

 eurystoma var. Klebsii mihi. The name ^''reticulata'' being un- 

 suitable in a variation. 



Tr. crenatocollis Maskell, Trans. N. Zeal. Inst., 1886, P1.3, f.3, 

 = Tr. hispida var. cr-enatocollis (Maskell) mihi; cf. Stein, I.e., 

 T.xxii., f.24; Dangeard, Les Eugleniens, p. 135, f.41 A. 



Tic^M 



■^Lq.lk 



Fig. 13. — Tr. torta Stokes. Fig. 14. — Tr. euchlora var. ■■iimilis (Stokes) mihi. 

 Fig. 15. — TV. eurystoma var. StoTcesii mihi. Fig, 16. — Tr. hispida var. 

 piscatoris (Fisher) mihi. All after Stokes. 



