Heterodontus francisci (Girard, 1855)
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https://doi.org/10.1111/jfb.15945 |
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https://treatment.plazi.org/id/0304FA39-FFEC-FFD8-4647-A0417F25F900 |
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Felipe |
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Heterodontus francisci |
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3.1.1 | Heterodontus francisci View in CoL
A medium-sized heterodontid egg case (117.2 – 125.6 mm ECL),with lateral keels making 2¼ to 2½ rotations from anterior to posterior ends; surfaces smooth; anterior margin broad and slightly S-shaped when viewed from anterior plane; broadest at anterior end, gradually tapering posteriorly; keel base to adjacent keel apex at midportion moderate (7.8% – 14.8% ECL); keels moderate in width (10.0% – 14.0% ECL), straight, projecting strongly anteriorly (Figure 2a), flexible, ending abruptly (not tapering) at posterior end.Color dark brown when preserved (Figure 3), with deposited egg cases appearing brown or with a yellowish-brown body and brown keels.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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