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	1.	The occurrence of albinos in a brood of the common water snake, Natrix sipedon sipedon (L.) / by William M. Clay by Clay, William M Series: Copeia ; n. 3 Material type: Text; Format: print ; Literary form: Not fiction Language: Inglese Publication details: New York : [s.n.], 1935 Availability: Items available for loan: STAZIONE ZOOLOGICA ANTON DOHRN (1)Call number: D18h 009. Place hold Add to cart (remove)
	2.	A synopsis of the North American water snakes of the genus Natrix / by William M. Clay by Clay, William M Series: Copeia ; n. 4 Material type: Text; Format: print ; Literary form: Not fiction Language: Inglese Publication details: New York : [s.n.], 1938 Availability: Items available for loan: STAZIONE ZOOLOGICA ANTON DOHRN (1)Call number: D18h 009. Place hold Add to cart (remove)
	3.	A new subspecies of water snake from islands in Lake Erie / by Roger Conant and M. William Clay by Conant, Roger Clay, William M Series: Occasional papers of the Museum of Zoology ; n. 346 Material type: Text; Format: print ; Literary form: Not fiction Language: Inglese Publication details: Ann Arbor, Michigan : University of Michigan Press, 1937 Availability: Items available for loan: STAZIONE ZOOLOGICA ANTON DOHRN (1)Call number: D18h 009. Place hold Add to cart (remove)

Benvenuti nel catalogo della Biblioteca del Mare. Stazione Zoologica Anton Dohrn