Chaetognatha: keys and notes for the identification of the species
Pierrot-Bults, A.C.; Chidgey, K.C. (1988). Chaetognatha: keys and notes for the identification of the species. Synopses of the British Fauna, N.S. 39. E.J. Brill/W. Backhuys: Leiden. ISBN 90-04-08610-2. VII, 66 pp.
Deel van: Barnes, R.S.K.; Crothers, J.H. (Ed.) Synopses of the British Fauna. Linnean Society of London: London; New York. ISSN 0082-1101, meer
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