132 W. K. TUKNEK, KKESH-WATEK ALGM OF KAST INDIA. 



duétis. A vertice visum triangulare, lateribus convexie vel concavis alternantibus, 

 angulis controversis. 



Long. 41—44, lat. 31—35, lat. isth. 12—14 ,u. T. XVI, f. 21. 



To this species I give the name of my friendly correspondent Mr. W. M. Maskell, 

 of Christchurch, N. Z. 



120. S. iotanuni, Wolle (Desm. U. S. A., p. 137, t. LI, f. 5—7, 1884) f. pentagona, n. f. 



Long. 18, lat. (c. proc.) 20, lat. isth. 5, long. proc 5—6 f*. T. XXII, t'. 12. 

 Northern India. 



121. S. ceratodes, n. sp. S. minus, tam longuni quam latum, quadraticum; semioellulae 

 sub-quadratae, lateribus et apice modice convexae; angulis inferioribus unicornutis, an- 

 gulis superioribus bifidis, et introrsum spina eurvata sub-erecta munitis; spiras vel 

 cornubus processu conica apud basin instructis; cornubus apicalibus reete basalibus 

 convergentibus dispositis; membrana glabra?; sinn cuneato, interne rotundato. A 

 vertice visum 4-angulare; angulis bifidis patentibus, cornua divergentibus, spinå unicå 

 transcendente. Massa chlorophyllacea radiata, angulos versus bifida. 



Long. et lat. (corn. incl.) 16—19, lat. isth. 5—7 fi. T. XIV, f. 28, a b (after 

 Wallich Mscr. No. 225). 



122. S. Sebaldi Reinsch (In Act. Senck. vol. VI, p. 133, t. XXIV, D 1, 1866) v&vt (i.m 

 natuni Nordst. (Norg. Desm. p. 34, f. 15, 1873). 



Long. 72, lat. SI fi. 



A small minor form, hut perfect in outline. 



East Bengal, from Utricidaria flexuosa, comm. G. von L. 



123. S. longispinum (Bail.) Archer (in Prit. Inf. p. 743, 1861; cfr synon. sub No. 34). 



Long. cell. 92, lat. 67, long. spin. 44 /u. 



A peculiarity of the Indian form was that the spines were perfectly straight, 

 though normally divergent; one specimen only seen. 

 Himalayas, from Utricularia stellaris, comm. G. von L. 



T." XXIII, f. 12. 



Cfr remarks sub No. 34. 



The genus Staurastrum, being very polymorphie, requir.es a considcrable number of 

 sub-genera to deal with its forms. 



A. Schizastrum (axiC,o), scindo; Gctryov, stella).... Forrase Furcat;e. 



Typ. sp. St. longispinum, bidentatum, bifidum, forficula- 



tum, Brasiliense. 



B. Trochastruni (r^o/og, rota; &c.) liotiformes. 



Typ. sp. St. rotula, margaritaceum, coronulatum. 



C. Hoplastrum (öriAa, arma; &c.) Armatae. 



Typ. sp. St. arctiscon, leptacantlium, sexangulare. 



I). Cyptastrum (xvnzöoj) arcuo; &c.) Areuatae. 



Typ. sp. St. arachne, cerastes. 

 E. Cephalastrum (xh(fcaig, capitulum; &u.) » ( apitulifer.e. 



Typ. sp. St. bacillare, globulatum. 



