1 28 W. B. TURNER, FRESH-WATER AfcGjE OF EAST INDIA. 



100. S. Manfeldtii, Delp. (Desm. Sul.-Alp. p. 1 ! 60, t. XIII, t*, (i— 19, 1*77) bispmatum. 

 Aptid ängulos spinis vel pinnis truncato-cmarginatis binis munitum. 



Long. 48—50, lat. 58—04, lat. isth. 13—14 /u. T. XVI, f. 11— 12. 



Ad. fig\ Delpontii 13 (sernic. infer.) accedens. 

 Y pinnatum. Dorso inflatuin, serie prominentiis pinnato-eniarginatis circ. 7 ornatum. 



Long. 50; lat. 60, lat. isth. 10 ,«. T. XVI, f. 10. 



Fig. 11 f. Delpontii proximum. 



The latter is so different from the other forms figured by the Italian author 

 that it niight reasonably claim to rank as a species. 



101. S. Burniense, Nob. (S. bifurcum Joshua Burm. Desm. p. 042, ex. p., t. XXIII, f. 27). 



Long. 40—50, lat. 51—60, lat. isth. 8-9 M- 



In Mr. Joshua's figures 3 distinct speeies seem to be included; 25, 20 are one 

 form (the type?); 28 is anonialons, the semicells being of diverse shapes, quite dif- 

 ferent from eäcn other! Howévér, this latter mav possibiy be a recurrénce of the 

 fäet observed by Nordstedt, in 'S. senårium. T. XVI, f. 13. 



102. S. bellum, n. sp. S. snbmedioere, paullo latins quam longnm; semicellnlis irregula- 

 riter cuneatis; dorso productis truncatis minute erenatis; apud angulos prominentas 

 tridentatis yel pinnato-emarginatis binatim dispositis (quaque prominentia inter acu- 

 leos eonicos dnos posita) ornatis; ventre incavatis, basali parte inflatis; angulis in 

 processus eurvatos convergentes striato-dentatos apice 3 — 4 spinuliferos productis; 

 central! parte frondis kevi; sinn brevi rotundato. A vertice visum 3-angulatum, late- 

 ribus concavis; medio crenis triangulatim positis ornatum. 



Long. 3G— 39, lat. 40—45, lat. isth. 7—9, proc. long. circ. 12 ju. T. XVI, 

 f. 9 *. 



103. S. ciirvatum, n. sp> S. snbmedioere, fere tam longnm quam latum; semicelluUv irre- 

 gulariter cuneatie, dorso rotundato-pinnata\ pinnis 6 — 7 brevibus apice acuto-incisis; 

 ventre incavatae parte superiore acuto-inflata 1 hasa rotundato-inflata? sub angulis 3 

 mueronata'; angulis in processus productis, quoque processu convergenti curvato atte- 

 nuato minute striato-dentato apice trifido; membrana reliqua kevi; sinn brevissimo, 

 rotundato. A vertice visum triangulare; lateribus concavis; centrali parte glabrum. 



Long. 4(5—55, lat. 48—54, lat. isth. 8 ,«. T. XVI, f. 9. 



104. S. recurvatum, n. sp. S. minus, fere tam longum quam latum; semicellnlis fusifor- 

 mibus, dorso verrucatis, ventre paullo tumidis, angulis 3 in radiis brevibus diver- 

 gentibus paullo recurvatis minute striato-dentatis apice truncatis 3 — 4 dentatis pro- 

 ductis; centrali parte frondis hevi; sinn brevissimo, rotundato. A vertice visum tri- 

 angulare, lateribus incurvatis, in partem dorsalem verrucis triangulatim positis. 



Long. 20—26, lat, 20—28, lat. isth. G, long. rad. G— 8 ju. T. XVI, f. 10. 

 Bengal, G. C. W.; East India, from Utricularia fascieUlataj G. v. L. 



105. S. ambiguum, n. sp. S. parvum, quarta parte longius quam latum; seinicellulis late 

 cuneatis, dorso elevato-truncatis minute erenatis granulatis (granulis in lineas sub- 

 marginales ordinatis); ventre tumidis; angulis 3 — 4, cum radiis rectis attenuatis fere 

 parallells brevibus minute dentatis apice 3 — 4-fidis armatis; membrana reliqua glabra; 





