, ‘ ' le) 
al ate otae. te 
290 PERCY SLADEN TRUST EXPEDITION. ‘ 
_ + PLATE 39. 
Figs. 24 & 25. Herpolitha limaz. Oral and aboral surfaces of a specimen intermediate between — 
figs. 21 and 23. Singapore. : 
Fig. 26. Polyphyllia talpina. Oral surface of the larger Singapore specimen in the collection. — 
Figs. 27 & 28. Déderleinia irregularis. Aboral and oral surfaces of the smaller type specimen from 
Funafuti, Ellice Islands. : : 
