Popis
Autor: Jan Delsing
Text ID: 101789
Text Type: 1
Page: 0
Založeno: 07.09.2020 12:20:47 - Uživatel Delsing Jan
Language: EN
Odkazová funkce: [[t:596759,textblock=101789,elang=EN;Popis]]
NOLF (2008) has restated the main features of this species and we therefore refer readers to the original description as well as to this recent work for details of the shell. The shell is illustrated in the present work It is necessary to add a description of the protoconch is rounded, smooth, shiny, brown with a little more than one whorl, suture marked and there is a clear transition with the teleconch. As would be expected with a species of direct development its size is a little variable ranging from 700 mm to 1 mm in diameter.
Dimensions: The largest syntype is 23 mm; maximum size observed 24.56 mm (CFB), usually between 15-19 mm.
Animal: We studied an alcohol preserved specimen. The head is dark around the tentacles and in the base are the eyes. On the right dorsal part is a penis which is elongate and abruptly terminated by a flat small surface where a tiny appendix could be seen. The sole of the foot is cream.
Operculum: Elongated, almost straight, with a terminal nucleus.
Radula: Obtained from a specimen with shell of 17.1 mm. It is formed by two rows of marginal elongate teeth which total 50 in number. The tooth is sharp pointed with a small barb less that one third of the total length; an internal callous resembling a bone can be seen at the centre. The tooth is rather small (LC/DR= 142) and neither rachidian nor lateral teeth are present.
Ryall, P. , Horro, J. & Rolán, E., 2009, Two new species of Crassispira (Gastropoda, Conoidea) from West Africa with a taxonomic note on Crassispira tripter von Maltzan, 1883
Rozšíření
Autor: Jan Delsing
Text ID: 101790
Text Type: 3
Page: 0
Založeno: 07.09.2020 12:22:37 - Uživatel Delsing Jan
Language: EN
Odkazová funkce: [[t:596759,textblock=101790,elang=EN;Rozšíření]]
Only known from the Dakar area of Senegal although NOLF (2008) mentions one specimen from Ivory Coast ex "Atlantidae" expedition.
Ryall, P. , Horro, J. & Rolán, E., 2009, Two new species of Crassispira (Gastropoda, Conoidea) from West Africa with a taxonomic note on Crassispira tripter von Maltzan, 1883