Overview

Comprehensive Description

Description

 

"Polinices (Euspira) strebeli DALL, n. sp.

 

 

Shell small, thin, rotund, polished, smooth except for incremental lines, and a great variety of irregular scratches which are probably pathological; periostracum pale brownish; whorls about four and a half, rounded, with an almost appressed suture, of the normal form; aperture oval, outer lip thin, sharp; body with a thin callus arcuately indented behind, thick and spreading in the umbilical region, where the umbilicus is completely filled, leaving only a chink distally, which does not lead to a definite perforation; pillar-lip in front of the callus, thickened, pass, ing imperceptibly into the anterior and outer lips; operculum brown, two-whorled­ horny, having a spirally striated glaze on the inner side and an elevated horny papilla at the nucleus. Alt. of shell, 12.0; of last whorl, 11.0; of aperture, 9.5; max. diam. 11.0 mm.

 

U. S. S. "Albatross," station 2783, off Southern Chile, in 122 fathoms, mud, bottom temperature 48°; station 2777, Magellan Strait, in 20 fathoms, gravel, and station 2808, near the Galapagos Islands, in 634 fathoms, coral sand, temper­ature 40°, the latter specimens fragmentary. Type, U. S. N. Mus. 97,093."

 

 

(Dall, 1908: 338)

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© National Museum of Natural History, Smithsonian Institution

Source: Antarctic Invertebrates Website (NMNH)

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Ecology

Habitat

Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 96.5 - 96.5
  Temperature range (°C): 7.321 - 7.321
  Nitrate (umol/L): 17.959 - 17.959
  Salinity (PPS): 33.886 - 33.886
  Oxygen (ml/l): 6.225 - 6.225
  Phosphate (umol/l): 1.503 - 1.503
  Silicate (umol/l): 4.700 - 4.700
 
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