NO. 3554 ANEMONE—HAND AND BUSHNELL 3 
asexual reproduction. Macrocnemes all perfect and with strongly 
restricted to circumscribed retractors. Microcnemes weak, consisting 
chiefly of parietal muscle. Acontia present on macrocnemes and 
sometimes on some microcnemes. Cnidom: spirocysts, basitrichs, 
microbasic amastigophores; also atrichs and holotrichs if catch- 
tentacles are present. 
The generic diagnosis above is the one given by Hand (1961). It 
differs slightly from that of Stephenson (1920) and incorporates cer- 
tain modifications resulting from the inclusion of Flosmaris bathamae 
Hand (1961) in this genus. 
Flosmaris grandis, new species 
FicuRss 1, 2 
Base: Generally circular, adherent and usually larger than scapus. 
Basilar muscles present and well developed. 
Column: Elongate, divided into scapus and scapulus, cylindrical 
and up to 20 cm. long and 2 cm. diameter in the preserved condition. 
In living condition within their burrows, column is up to 46 cm. 
long. Diameter of column tapers from less than 0.5 cm. just above 
base to about 1.5 cm. in region of scapulus in a large individual. 
Removed from natural surroundings, column usually expanded in 
upper two-thirds, tapering to meet flaring base, and resembling long, 
slender goblet (fig. 1). Column translucent or pale white, depending 
on degree of expansion or contraction of individual. Mesenterial 
insertions visible as pale white lines. 
Scapulus short, usually less than one-fifth of total column, some- 
what more transparent than scapus and thereby distinguished from 
the latter. Histological preparations show a thinning of all layers 
in the scapulus. No cinclides or tenaculi present in scapulus and 
there appear to be fewer gland cells in scapus. 
Scattered tenaculi present in upper third of scapus, but sand grains 
rarely found attached to them. Weakened areas somewhat compa- 
rable to poorly developed cinclides present in upper part of scapus. 
Mesogloea of column about of the same thickness as endoderm but 
only about 0.8 as thick as ectoderm. 
Mesogloeal sphincter (fig. 2a) fairly well developed at top of the 
scapulus and immediately adjacent to tentacle bases. 
Circular, endodermal muscles present throughout length of column 
but not extensively developed. 
Tentacles and Oral Disc: All the specimens so far examined have 
only regular tentacles, catch tentacles being unobserved. From 90 
to 144 tentacles have been counted on various individuals. Inner 
tentacles usually hexamerously arranged. Individual tentacles extend 
to 1.6 cm. in length, and total crown may attain a diameter of as 
much as 3.5 cm. Tentacles thin, transparent, and gently tapered. 
