140 MR. W. WEST ON THE FRESHWATER 



Lake of Killarney ; Carrantuohill ; Lower Lake of Killarney ; 

 Adrigole; Grlen Caragh; GrlengarrifF. 



Forma minor, West. (Desm. Maine, in Journal of Bot. 

 Nov- 1888.) 

 I. Lakes, Clifden to Roundstone : Ballynahinch ; Roundstone ; 

 Athry Lough. 



tfForma hia^s. (PL XX. fig. 14.) 

 Forma sinu lato rectangulareque repente angusto extremo 

 leviter ampliato. 



Long. 11 fi ; lat. 10-11 p ; lat. isthm. 2*5-3 p ; crass. Q ft* 

 I. Ballynahinch ; Lakes near Recess. 



Var. elobatum, Lund. (Desm. Suec. p. 23, tab. 2. fig. 7.) 



I. Ballynahinch ; Derryclare Lough. 



Var. instjlabe, Wittr. (Om Gotl. oclt 01. Sotv. p. 49, 

 tab. 4. fig. 7.) 



II. Lower Lake of Killarney. 



tt*suBELOBATUM, nov. subsp. (PI. XX. fig. 15.) 

 E. parvum, diametro l^plo longius, profunde constrict urn, 

 sinu lineari extremo ampliato ; semicellulaB trapezoidese, angulis 

 inferioribus rectangularibus biundulatis, lateribus superioribus 

 convergent ibus uniundulatis, late emarginatae apice; a vertice 

 visse undulato-rhomboidese ; a latere visae subrotunds©, papilla 

 mediana apice lateribusque ; membrana glabra. 



Long. 26 fx ; lat. 18 ix ; lat. isthm. 5 fi ; crass. 12'5 /i. 

 I. Lough Aunierin. — II. Lough Guitane. 



f23. Euastrtjm crassangtjlatum, Boerg. (Desm. Brasil. 

 p. 942, tab. 3. fig. 25.) 



ttVar. ORKATUM, nov. var. (PI. XX. fig. 16.) 

 Semicellulae granulis sex medio (quinque annulo circa gran- 

 ulum centralem) et granulis sex intra ambitum. 



Long. 27 /*; lat. 17*5^; lat. isthm. 4*5^; crass. 14^. 

 I. Ballynahinch. 



24. E. dexticulatum, Gay. (Sur les Conj. du Midi de la 



France, 1884, p. 335.) 



Long. 17-21-5 fi ; lat. 15-20 fi ; lat. isthm. 4-6'5 /x ; crass. U ^ 

 I. Creggan Lough ; near Recess ; near Westport ; Moher, 



Boy, Aunierin, Shannacloontippen, and Shindilla Loughs ; GHen- 



