12 v. T. CI.EVE. DIATOMS FROM JAVA. 



45. Asterionella Frauenfeldii Grun. (^"erli. 18()o pair. 140 

 Pl. XIV fig. 18 a. b. c. 



V^ery coir.mon; iound before near the ^icobarian Islands 

 (Grunow). 



40. Amphicampa equatorialis Cl. N. sp. Soinewliat twisted. 

 Frontview panduriibi-in, broadcst near the ends. Valve coarsely 

 striated, striaj composed of" distinct (especially near the margin) 

 granules. Connecting niembrane with 6 — 7 longitudinal bars 

 (diaphragms?), interstices being coarsely striated. Stria) 1(3—18 

 in 0,0 2.5 m.m. Length 0, 12 m.m. Breadth O, o 5 — 0,0 7 m.m. 

 Yery rare. 



This beautilnl species somewhat resenibles Amphiprora com- 

 piciia Geey. but, being twisted, it belongs to Amphicampa of" 

 K ab en hor st. 



PL III fig. 17. 



47. Amphiprora membranacea Cl. N. sp. \ery large, scar- 

 cely siliceous; frontview broadly bnearand verv little constricted 

 in the middle; angles rounded. Stria' ]iarallel, very fine, but 

 distinct about 50 in 0, 02,5 m.m. Sideview elliptical, narrow. 

 median line straight. Length 0,24 m.m. Breadth 0, 12 m.m. 

 (f. v.) Very rare." PL II %. 18. 



48. Amphora plicata (jreg. (T. ]\L S. Vcl. V pag. 70. PL 

 I fig. '61). Very rare. 



4!*. Mastogloia Meleagris Kg. var. inhndula (Grev.) Gru- 

 now {Mastogl. mimtia (^rev. M. J. VoL V pag. 12. PL III 

 fig. 10) very rare. 



50. Nitzschia panduriformis Geeg? {Greg Diat. of Clyde pag. 

 529. PL XIV lig. 102 ILmtzsch. Ost Ind. Arch. Diat. in Kab. 

 Beitr. zu Kenntn. u. Verb. pag. 20 fig. 7). Very rare. 



This species bas no distiiict oblique stria^ as the sp. of Greg 

 and resembles much more the form described by Hantzsch. 

 Length 0,045 m.m.; striie about 3() in 0,025 m.m. puncta about 

 20 in 0,0 2 5 m.m. 



51. Nitzschia Fluminensis Grun? (Verb. 1862 pag. 581 PL 

 XII fig. 35) very rare. The strire are coarser than in specimens 

 described by Grunow viz. 32 in 0,025 m.m. (45 in 0,oi" Gr.). 



