■4j/ 



k '^li 



Fig. 24. lophon proximum (Ridley), showing variation in size and 

 magna, Wilson (type) ; b, I. chelifer, Ridley and Dendy (co-type : B.M 

 met, but U'-b" represent the normal ; c, /. chelifer, Ridley and Dendy 

 (Lambe's specimen) ; /, /. indenlatus, Wilson (type) ; g, I. lamella 

 Wilson (type); /, /. pattersoni (Bowerbank), Ridley and Dendy, i is 

 the same, and i"-i"' are rarely met with; j, I. chelifer, Ridley and 

 /, D 236 ; m, D 251; n, D 739 ; o, D 740 ; p, D 257 ; q, D 254, D 258; 

 V, Alebion proximum, Ridley (type). All figures x 1800. Figs. a,f, 

 fig.y after Thiele. 



shape of bipocilla. a, I. chelifer ostia- 

 . 87. 5. 2. 157), b and b' are occasionally 

 (type) ; d, I. chelifer, Ridley and Dendy 

 indivisiis, Wilson (type); h, I. lamella, 

 the normal spicule, i' is a side view of 

 Dendy (Thiele's specimen); k, D 233; 

 r, D 431; s, D 252; t,D837; u, D 430; 

 g, h after Wilson; fig. d after Lambe; 



