130 W. Ii. TUKNEK, FREiSH-WATKK AL(LE OF EASKT INDIA. 



gonum; forma 2-gona elliptica apicibus acutis; f. 3-gorta triangulari lateribus naedio 

 ieniter concavis apicem versus paullo inflatis, apice acute rotundatis. 



Long. 28— 30, lat. 24—26, lat. isth. 6 ,u. T. XVI, f. 38 (also in Wallkii Mscr. 

 No. 183). 



111. S. ignotum, n. sp. A basi visum ovale lateribus rnedio paullo compressis, apicibus 

 semicircularibus. Semicellula (ut milii visa est) processubus parvis brevibus (3 — 3.5 ,w 

 loiigis) tubuliformibus apice furcatis basi incrassatis in series tratisversales ordinatis 

 ornatä; apud suturam prominentiis minutis emarginatis sparsis munita. 



Lat, 30, crass. 19, lat, isth. 8.5 [t. T. XVI, f. 30. 



It is very unusual to describe a form from a basa] or -vertical view only, but 

 as this form is so peculiar I have made it an exception. In this I follow the ex- 

 ample of the great Ehrenbekg; cfr. his t. IV, f. 21 — 23 in Verbr. Amer. 1843. 



112. S. brevispinum Bréb. (in Mengh. Synops. nomen solum! p. 229, 1840; in Ralfs Rr. 

 Desm. p. 124, t. XXXIV, f. 7, 1848). Forma, semicellulis altioribus quam in forma 

 typica; Boldt (Sibir. Cloroph. p. 113, t, V, f. 30, 1885) == f. Boldtii, Nob., n. f. 



Long. 38—40, lat, 34—37, lat, isth. 18—22 /u. T. XVI, f. 45. 



This agrees very elosely, though a little broader, with the Siberian form of Boldt. 



113. S. angulare, n. sp. S. submediocre; circ, tam longum quam latum; semicellulis late 

 hexagonis, dorso fere planis, lateribus uni- et fere reet-angulatis; angulis externis 4 

 acuto-mucronatis, quoque angulo mucronibus 4 munito; membrana glabra; sinn aperto, 

 fere rectangulo. A vertice visum octagonum, ut. 4-gonum cum angulis caesjs; lateri- 

 bus et angulis paullo incavatis, angulis 8 mucronatis. S. guadrangulari Bréb. 

 proxiinum. 



Long. 30, lat. 28, lat. isth, 13 ,«. T. XIV, f. 17. 



This is rather larger than S, quadrangulare Bréb. (in Ralfs l>r. Desm. t. XXII, 

 f. 7; t, XXXIV, f. 11), and differs therefrom in the sides being angled and not 

 vertical. 



114. S. uodiferum, n. sp. S. submediocre, circ. lVj-plo latins quain longum; semicellulis 

 irregulariter pentagonis, dorso convexis, ventre angulato-intlatis (sub angulis aculeos 

 parvos 3 gerentibus); angulis tribus paullo constrictis et externe paullo divergentibus 

 nodulatis vel rotunde capitatis, quoque capitulo cum 3 — 4 aculeis acutis curvatis bre- 

 vibus ornato; membrana glabra; sinn apertissimo, cuneato-rotuudato. A vertice vi- 

 sum triangulare, lateribus convexis, apicibus capitatis, sub-apicibus paullo constrictis. 



Long. 33, lat, 30—37, lat. isth. 7 ,«. T. XIV, f. 20 (also in Wallkii Mscr. 

 No. 241). 



Raneegunge, 23 Nov. 1855; (i. C. VY. 

 Cfr. also No. 110. 



115. S. ung u i fe rum, n. sp. S. mediocre, fere duplo longius quam latum; semicellulis 

 cuneato-quadratieis; dorso fissis trilobatis, lobis triangulatis apicibus aculeis parvis 

 erectis instructis; lateribus vel rotundato-expansis vel fere planis; membrana laevi; 

 sinn plus minus aperto rotundato. A vertice visum triangulare, angulis late rotun- 

 datis, lateribus paullo ineurvalis. 







