TY  - JOUR
AB  - Begins: "There have been, since 1900, several generic revisions of the Echiuroidea--notably that of Echiurus by Spengel in 1912 and of Thalassema by Wharton in 1913,--but no attempt has of recent years been made at a general systematic arrangement of the class as a whole."
A1  - Monro, C. C. A.
DO  - 10.1080/00222932708655496
JO  - Annals and Magazine of Natural History (Series 9) 
N1  - World Polychaeta Database (WPolyDb)
IS  - 120
SP  - 615
EP  - 620.
C1  - 20(120): 615–620.
TI  - On the families and genera of the class Echiuroidea
UR  - http://www.tandfonline.com/doi/abs/10.1080/00222932708655496?journalCode=tnah15
VL  - 20
PY  - 1927
Y2  - 2026-03-10
ER  -