Seguenzia cervola Dall, 1919,

Geiger, Daniel L., 2019, The Family Seguenziidae Verrill, 1884 in the Northeast Pacific, including a comment on excessive numbers of taxonomic data portals, Zoosymposia 13, pp. 61-69: 64

publication ID

http://dx.doi.org/10.11646/zoosymposia.13.1.7

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:16D27C71-5A6C-4ADF-AD6C-6B07C2773112

persistent identifier

http://treatment.plazi.org/id/D557D228-F438-FFBA-D58F-FAC7FB98FA08

treatment provided by

Plazi

scientific name

Seguenzia cervola Dall, 1919
status

 

Seguenzia cervola Dall, 1919 

( Figure 2View FIGURE 2 A–B)

Seguenzia cervola Dall, 1919: 344  . Holotype USNM 209229View Materials. Off North Coronado Island , Baja California, 618–692 fms [= 1130–1265 m].

Seguenzia megaloconcha Rokop, 1972: 15  , fig. 1. Holotype USNM 701260View Materials. SW of Farallon Islands, W of Pioneer Seamount, 3592–3798 m. New synonym.

Description. Shell to 10 mm, globular inflated, suture little impressed; spiral cords decreasing in strength from shoulder to base, one below suture, one on mid-shoulder, more than one dozen from periphery to base; crossed by finest axial lines; umbilicus open, bordered by more or less distinct periumbilical cord, partially covered by umbilical chink, funiculus present; columellar wall thickened, abruptly ending.

Distribution. Oregon (46˚N) to Coronado Islands, Baja Califonia (32˚N). 1100–3800 m.

Remarks. Seguenzia megaloconcha  is a small specimen of S. cervola  as shown by the identical sculpture on the earlier portion of the teleoconch and the shared umbilical characters.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Family

Seguenziidae

Genus

Seguenzia

Loc

Seguenzia cervola Dall, 1919

Geiger, Daniel L. 2019
2019
Loc

Seguenzia megaloconcha

Rokop, F. J. 1972: 15
1972
Loc

Seguenzia cervola

Dall, W. H. 1919: 344
1919