156 MB. W. WEST (XN THE FKESHWATER 



tab. 16. fig. 6, tab. 33. fig. 7. 

 I. Near "YVestport. 



Ealfi 



70. C. coNFirsrM, Cooke, var. regulareus, Nord. (Fr. Wat. 

 Alg. of New Zeal. Sf Austr. p. 47, tab. 5. fig. 6.) 



I. Lakes near Recess ; Arderry Lough ; Lakes, Clifden to 

 Boundstone ; Derryclare Lough ; Lough Aunierin ; Creggan 

 Lough ; Oorid Lough ; Lakes east of Lough Bofin ; -Nacoo- 

 garrow Lough ; Boy Lough. — II. Muckross ; Upper Lake of 

 Killarney ; Grlen Caragh ; Grlengarriff. 



tt # AMBTGUUM, nov. subsp. (Pi. XXI. fig. 13.) 

 C. mediocre, diaraetro quarto parte longius, profunde con- 

 strictum, sinn lineari extremo ampliato ; semicellulse breviter 

 subpyramidatse, late truncata? ad apicem, angulis inferioribus et 

 superioribus rotundatis, granulis magnis subconcentrice ordinatis 

 (nudse ad apicem) ; a vertice visse ellipticae ; a latere visse circu- 

 lares, granulis in circiter 6 seriebus transversis longitudinali- 

 busque ; pyrenoidibus binis. 



Long. 50-52 fx ; lat. 42-43 fi ; lat. isthm. 12-13 ^ ; crass. 

 28/u. 



I. Ballynahinch ; Creggan Lough ; Derryclare Lough ; Lough 

 Aunierin. — II. Cromagloun ; Upper Lake of Killarney. 



71. C. amcenum, Breb. in Ralfs, Brit. Besm. p. 102, tab. 17. 

 fig. 3. 



Long. 46-49 fi ; lat. 21-25 fi ; lat. isthm. 8-12 fi ; 

 17-18 fx. 



I. Roundstone ; Ballynahinch ; Arderry Lough ; near Ougb- 

 terard ; near "Westport ; Lakes, Clifden to Eoundstone ; Lakes 



# • 



east of Lough Bofin; Derryclare Lough; Lough Aunierin; 

 Athry Lough. — II. Cromagloun ; near Lough Brin. 



* 



fVar. mediol^ye, Nord. (Fr. Wat. Alg. of Neiv Zeal. Sf 

 Austr. p. 50, tab. 5. fig. 12.) 

 Long. 52 ^ ; lat. 32 /x ; lat. isthm. 16 fi. 

 I. Ballynahinch. 



f72. C. pseudamcen-uai, Wille. (Bidrag til Sydamerilc. Alg- 



FI. p. 18, tab. 1. fig. 37.) 

 I. Clifden. 



crass 



