Semipsammina

Description

Test attached , consisting of a single fragile layer of xenophyae covering granellare and stercomare which are attached directly to substrate. Occurrence: Puerto Rico Trench , 6000-5890 m ; eastern equatorial Pacific , 4200 m. conforms to shape of substrate . Yellow-brown in color, up to 5.5 mm diameter and about 0.5 mm thick. Xenophyae are sponge spicules , mineral particles and fine-grained interstitial material. Other species: an undescribed species occurs in the eastern Pacific . Refs. Tendal (1975), Mullineaux (1987). Lectotype (after Tendal, 1972, new print) . Scale bar=IO mm . 1092 CLASS XENOPHYOPHOR

Type species

Semipsammina fixa Tendal , 1975 Test layer irregularly rounded in outline and

Figures

Raw text

Test attached , consisting of a single fragile layer of
xenophyae covering granellare and stercomare
which are attached directly to substrate.
Occurrence: Puerto Rico Trench , 6000-5890 m ;
eastern equatorial Pacific , 4200 m.
conforms to shape of substrate . Yellow-brown in
color, up to 5.5 mm diameter and about 0.5 mm
thick. Xenophyae are sponge spicules , mineral
particles and fine-grained interstitial material.
Other species: an undescribed species occurs in the
eastern Pacific . Refs. Tendal (1975), Mullineaux
(1987).
Lectotype (after Tendal, 1972, new print) . Scale
bar=IO mm .
1092 CLASS XENOPHYOPHOR