Contents
- TITLE_SECTIONTitle Section
- CHAPTERRegional Variation in Riblet Frequency in the Ptychodon (Ptychodon) hectori-hunuaensis Complex (Mollusca: Charopidae)
- ILLUSTRATIONText-fig. 1.—Count ranges for the first post-nuclear whorl in samples of P. hectorihunuaensis complex taken from the ...
- ILLUSTRATIONText-fig. 2.—Frequency distributions of riblet counts of the first post-nuclear whorl in the P. hectori-hunuaensis co...
- ILLUSTRATIONText-fig. 3.—Frequency distributions of first post-nuclear whorl riblet counts in samples involving the two species.
- ILLUSTRATIONPhoto: S. A. Rumsey. Fig. 1.—A—Species 1 with widely spaced ribbing, Omapere, Hokianga. B, C—Species 1 (B) and 2 (C) ...
- ILLUSTRATIONText-fig. 4.—Frequency distributions of first post-nuclear whorl riblet counts in samples from zone 1 (species 1).
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