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to Bahamian Seashells: 1161 Species from Abaco, Bahamas (“BS2”)
This page last updated November 27, 2018.
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Figures of the living animals of species Nos. 728 and 731 are reproduced above. The shell from the specimen in fig. 728A shattered on removal, but the protoconch remained intact. The shell from the specimen in fig. 731A was retrieved intact, but for comparison purposes only the protoconch is shown here. The photos of the shells in BS2 are replaced here by SEMs kindly provided by Dr. Ángel Valdés, who examined the above specimens and determined (pers. comm., 2012) that the specimen in fig. 731A was an example of Chelidonura normani. Identification of the specimen in fig. 728A remained uncertain, but was tentatively attributed in BS2 to C. africana. Ortea et al. (2012) reproduced SEMs from the original description of C. normani depicting the shells of two paratypes (LACM3126 and LACM3127). Although the protoconchs of those two specimens of C. normani lacked the prominent extension seen on the protoconch of C. mariagordae, those authors concluded that C. normani was a junior synonym of the latter species. This decision was followed by WoRMS and subsequently by Zamora-Silva & Malaquias (2017), who reassigned Chelidonura mariagordae to the new genus Camachoaglaja. They re-identified LACM3126 as Camachoaglaja berolina and LACM3127 as Camachoaglaja mariagordae. SEMs of the protoconch of LACM3126 provided by Ornelas-Gatdula et al. (2011), re-identified by Zamora-Silva & Malaquias (2017) as Camachoaglaja berolina, show that species to lack an extension on the protoconch. The latter authors recorded several specimens of Camachoaglaja mariagordae from the Bahamas, and it seems likely that species No. 728 is representative of that species unless or until Camachoaglaja africana is shown to be amphiatlantic. The correct identification of species No. 731 is now uncertain.
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