34 The Philippine Journal of Science 1921 
thickest between the ring canal and the base of the mouth-arm 
pillars (about 20 millimeters in thickness) while the area beyond 
the ring canal is very thin and tapers gradually to the extremely 
thin lappets. In a magnificent specimen, obtained since the 
illustrations were completed and after this paper was in proof, 
the bell in life was observed to approach a hemisphere and to 
have a minimum diameter of about 400 millimeters. The whole 
organism was very soft and pliable and when extended in death 
measured 600 millimeters or more in diameter. 
deeper.) 
The entire exumbrella with the exception of the grooves be- 
tween the marginal lappets is thickly set with low, flat, wartlike 
projections colored a velvety brown. These warts increase in 
size from the margin, where they average a few millimeters in 
diameter and are most irregular in shape and deep in color, to 
the region of the exumbrella internal to the ring canal, 
where they reach a diameter of 20 millimeters or, where elong- 
ated, a length of 30 millimeters, and are more lightly colored 
and more elevated. This color fades out in preserved specimens 
but the warts remain conspicuous. These thickset brown spots 
give the only color to the bell, which is transparent white, the 
canals being slightly opaque white and the gonads, which pro- 
trude widely from the subgenital ostia of the adult, are opaque 
white in young specimens and a beautiful pale violet shading 
into pale pink in the adult. 
