TY  - GEN
AU  - M'Intosh,W.C.
TI  -  Preliminary notice of Cephalodiscus, a new type allied to Prof. Allman's Rhabdopleura, dredged in H.M.S. "Challenger."
PY  - 1882///
CY  - [London : 
PB  - s.n.], 
ER  -