Journal volume
	
		1981-1993. Volume 4. Megadrilogica.
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Articles
	- 
		Moreno, A.G., Jesus, J.B. & Diaz Cosin, D.J., 1982.
			Contribution to the knowledge of Spanish Lumbricidae. III. Dendrobaena pseudorrosea n.sp.: 3-5.
	
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		McKey-Fender, D. & Fender, W.M., 1982.
			Arctiostrotus (gen. nov.). Part I. The identity of Plutellus perrieri Benham, 1892 and its distribution in relation to glacial refugia: 81-85.
	
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		McKey-Fender, D., 1982.
			Doctor Kincaid's other worm: 86-88.
	
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		Lainez, C. & Jordana, R., 1983.
			Contribution to the knowledge of Spanish Lumbricidae with the description of three new species: Nicodrilus subterrestris sp. nov., Scherotheca campoii sp. nov. and Scherotheca navarrensis sp. nov.: 89-91.