26 BRITISH SPONGIAD^. 



3. LBUOOSOLENIA LACUNOSA (Johnston), u, 32 ; in, PI. 



IV, figs. 18. 



4. LEUOOSOLENIA OOEIACEA (Fleming), n, 34 ; in, PI. Ill, 



figs. 1114. 



Genus 3. LEUCONIA, Grant, i, 164 ; n, 2. 



1. LEUCONIA NIVEA (Fleming), n, 36; in, PL V, figs. 



18. 



2. LEUCONIA FISTULOSA (Johnston), n, 39 ; in, PI. V, 



figs. 916. 



3. LEUCONIA PUMILA, Bow., 11, 41 ; in, PI. VI, figs. 1 5. 



4. LEUCONIA SoMEsn,5o?y., in, 334; PI. XCI, figs. 6 17. 



Genus 4. LEUCOGYPSIA, Bow., i, 165 ; n, 2. 



LEUCOGTPSIA GOSSEI, Bow., i, 42 ; PI. XXVI, figs. 349, 

 350 ; in, PI. VI, figs. 68. 



