KONGL. 8V. VKT. AKADEMIENS HANDLINGAK. BAND 26. N:() 2. 181 



G. ungiDitatuin var. intermedia Grun. in V. H. Syn. PI. XXIV f. 47, 4^. G. a)iyu.'ifuin Br^b. 

 (fide Grun.). 



Fresli water: Finland! Sweden, Upsala! Gotliland, Visby in slightly brackish water (a var. 

 with coarse striae, 8 in 0,01 mm.), Kansas River! Ecuador! 



Var.? tergestina Grun. (1880). — V. lanceolate, with obtuse, truncate ends. L. 0,(iir); \\. (),()()4 

 mm. Central area unilateral, very broad, reaching to the margin. Stria' 14 in 0,01 mm. — 

 G. semiapertum var. tergestina Grun. in V. H. Syn. PL XXV f. 40. 



Triest (Grun.). 



o. Gr. angustatum Kutz (1844). — V. slightly clavate, linear, with broad, rostrate to sub- 

 capitate apex and basis. L. 0,o3 to 0,04; B. 0,oo7 mm. Axial area not distinct; central area uni- 

 lateral, stigma indistinct. Striii; transverse 10 to 12 in 0,01 mm. indistinctly punctate. — Sphenella 

 angustaia KuTZ Bac. p. 83 PI. VIII f. 6. G. commune Habh. F1. E. Alg. p. 283 (1864). G. angusta 

 V.H. Syn. p. 126 PL XXIV f. 49, 50. 



Fresh water: Sweden! England! Belgium (V. H.), France! Germany! 



Var. producta Grun. (1880). — V. L. 0,02 to 0,025. Ends rostrate to capitate. — Gompli. 

 commune Lagst. Spitsb. D. p. 40 PL I f. 14. G. ang. var. prod. V. H. Syn. PL XXIV f. 52 to 55. 



Fresh water: Spitzbergen! Sweden! Finland! Neuchatel! Tasmania! Arctic America! Winni- 

 peg River! Brazil! 



Var. ohtusata KtJTZ (1844). — V. distinctly clavate, with broad, subrostrate ends. L. 0,025 

 to 0,03 mm. StricE 9 to 10 in 0,o! mm. — Sphenella ohtusata KuTZ Bac. p. 83 PL IX f. 1. 

 Gomph. ang. var. ohtus. V. H. Syn. PL XXIV f. 43 to 45. Sph. obt. and ^S'. vulgaris Schum. I 

 Nacht. PL II f. 14, 15. Sphenella naviculoides Hantzsch in Rab. Dec. N:o 1322 (1862). 



Fresh water: Thtiringen! 



Var. eequalis Greu. (1856). — V. with capitate-rostrate apex and basis. L. 0,o3 to 0,035; 

 B. 0,006 mm. Strife 10 to 12 in 0,oi mm. — G. cequale Greg. M. J. IV PL I f. 41. G. angust. 

 var.? (equalis Grun. V. H. S. PL XXV f. 3. 



Fresh water: Scotland (Greg.). 



Var. siibceqnalis Grun. (1880). — V. as in var. producta. Striae 14 in 0,oi mm. — Grun. 

 V. H. Syn. PL XXV f. 1. 



Fresh water. 



Var. Sarcophagus Greg. (1856). — V. linear with rostrate, broad apex and basis. L. 0,o24 

 to 0,04; B. 0,006 to 0,007 mm. Stria; 8 in 0,oi mm. — G. Sarcophagus (tREG. M. J. IV PL I f. 42. 

 G. ang. var. Sarcoph. V. H. Syn. PL XXV f. 2. G. Lagenula Schum. Ill Nacht. PL II f. 8? 



Fresh water: Sweden (Rimforsa in Westergotland, Alnarp)! Scotland (Greg.). 



Var. undulafa Grun. Ms. — V. tritmdulate. L. 0,02 to 0,u28; B. O,oofi mm. Strife 10 in 0,oi mm. 



Fresh water: Laurgaard in Norway (Grun.). 



Gomph. angustatum is a very variable species, passing over by its varieties to Gomph jjar- 

 vulum var. micropus. By the var. undulata it seems to be connected with Cgmbella abnormis. 



'^ 4. G. intricsitum Ktixz (1844). — V. sublinear, slender, slightly gibbous in the middle, 

 with obtuse apex and basis. L. 0,o3 to 0,07; B. 0,oo5 to (),oo8 mm. Axial area distinct, but 

 narrow; central area transverse, broad. Striae 10 in 0,oi mm., subparallel, obscurely punctate. — 

 KtJTZ Bac. p. 87 PL IX f. 4. V. H. Syn. p. 126 PL XXIV f. 28, 29. G. gracile Schum. II Nacht. 

 PL I f. 18 a. 



Fresh water: Sweden! Russian Lapland! Finland! Hungary, Uubravica, fossil (Grun.), 

 Ecuador (reg. trop.)! 



Var. pumila Grun. (1880). — L. 0,03; B. 0,oo5 mm. Stria; 10 in 0,oi mm. — Grun. in 

 V. H. Syn. PL XXIV f. 35, 36. G. gracillimum Schum. II Nacht. PL I f. 18 6? 



Fresh water: Belgium (V. H.), England, Cirencester! Hungary, Dubravica, toss. (Grun.). 



