The weakly calcified, easily fractured, translucent shell is permanently enclosed when alive by the fused right and left mantle lobes.
1: ventral view of body (partly decayed).
2: dorsal view of body. Usual colours on L. latens are whitish or yellowish, often resembling encrusting compound ascidians like this one.
3: interior of shell.
4: exterior of shell.
5: profile of shell.
6: spire does not protrude from the overall oval outline of the shell when viewed ventrally or dorsally;diagnostic feature.
Longest dimension of shell 2.7 mm. September, 2018. Dorset, England. Leg. S. Trewhella.