from The Century Dictionary.
- A group of Foraminifera in which the test is not secreted by the organism, but is constructed by it from particles of sand, shell, sponge-spicules, and other adventitious bodies picked up by it and cemented together by a modification of the sarcode. The name does not indicate a true zoölogical group.
Sorry, no etymologies found.
Other than No. 31116, _S.p. arenacea_ has only been recorded from Sabinas in March, when three specimens were obtained (Miller,