Excerpt from The Phylogeny and Systematics of the Fundulus Nottii Species Group (Teleostei: Cyprinodontidae)

Initial analysis of a limited number of Specimens from each lot of Tulane specimens did not allow for variation within samples to be assessed for this character (10 specimens per lot). Therefore, when it was brought to my attention that squamation patterns varied within Species and within populations by Dr. Gerald Smith (university of Michigan Museum of Zoology), I rechecked for variation using the ummz Specimens cited in the appropriate sec tions below.

Supraorbital sensory canal pore terminology follows Gosline The distance between pores 4a and 4b is defined as dis tance A in Figure 2, the distance between pores 4a and 3 is defined as distance B in the same figure. A fused pore 4 is termed 4a+h and is defined as a single oblong or round Opening associated with the E scale between pores 3 and 5. Fused pores lack a complete septum between 4a and 4b. The ontogeny of the pore canal system as evidenced by comparison of individuals of various sizes indicates that in those species in which adults usually have fused 4a+h the juvenile condition is commonly one of unfused but close association. Thus there are many specimens of young (and occasional adults) where the distinction between close but unfused and fused is arbitrary since both conditions are parts of the same ontogenetic sequence.

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