Popis
Autor: Jan Delsing
Text ID: 89890
Text Type: 1
Page: 0
Založeno: 24.09.2018 15:41:08 - Uživatel Delsing Jan
Language: EN
Odkazová funkce: [[t:1260097,textblock=89890,elang=EN;Popis]]
There is a relatively large protoconch in a relatively small shell with low spire. The protoconch consists of more than three whorls with smooth embryonic shell and axially strongly ornamented larval shell. The embryonic shell is only about 0.08 mm wide and smooth. The larval shell is ornamented by nodded axial ribs which split into two ribs below the periphery and continue as lines of nodes. Between these ribs the shell is wrinkled spirally. The apertural margin is much thickened and its lobe, if present, is covered by the first teleoconch whorl. This teleoconch consists of only 1.2 whorls and its end is twisted down somewhat and thickened. It is ornamented by three strong spiral ribs forming keels and by numerous straight axial ribs crossing these.
Derivatio nominis: Called due to it pretty shell.
Locus typicus: The species is rare in the crevices of the fringe reef in front of the Ma-
rine Station in Aqaba, living within shallow water. Only two specimens were encountered.
Alhejoy et al, 2016. Pickworthiidae and Aqabarellidae New Family (Caenogastropoda, Mollusca) of Aqaba, Jordan. Their Larval Shells and Remarks about Their Evolution and Relation.