Mr. H. J. Carter’s Generic Characters of Sponges. 129 
guttis albis utrinque ornato; femorum basi, tibiarum apice tar- 
sisque nigris. 
Long. 5} lin. 
The general colour is a pale sandy, with a slightly darker 
shade at the base and apex of the elytra. Scattered more or 
less all over the body, including the basal joint of the antennze 
and the legs, there are erect white sete. There are a few 
distinct punctures on the head between the antenna. The 
fourth to the apical joints of the antenne are blackish brown, 
with the base of each joint pale. The thorax is very slightly 
broader than long, moderately narrowed in front of the 
middle, with a very slight constriction at the base, the sides 
very gently arcuate; near the base there are a few very distinct 
punctures; on the basal margin on each side there is a very 
small fuscous spot. The elytra have the shoulders rounded ; 
some punctuation is visible through the pubescence, there are 
some small black punctures here and there, and near the scu- 
tellum there are numerous larger dark punctures. There is a 
brown patch on each side of each abdominal segment, and in 
each patch a small white spot. The legs are nearly white, 
with the base of the femora dark; the apex of the tibie and 
the tarsi nearly black. 
Hab. Philippine Islands? Brit. Mus. 
The specimen from which the above description is taken 
was found alive in the Royal Nursery, Chelsea, on a species 
of Orchis (Phalenopsis) from Manilla; it was gnawing off 
the stems of the plant. 
British Museum, 
Cromwell Road, 8. W. 
~XVI.—Generic Characters of the Sponges described in Mr. 
Carter’s “Contributions to our Knowledge of the Spongida” 
(‘ Annals,’ 1883, vol. xii, p. 308). By tHe AurHor. 
Order III. PSAMMONEMATA. 
Family 1. Surface even, not polygonally divided. 
Genus CoscrINoDERMA, Crtr. 
Char. Sieve-like incrustation, composed of foreign bodies, 
