Lora equatorialis Dall 1919

Lora equatorialis Dall, 1919 (Pseudomelatomidae, genus assignment uncertain) Fig. 35B Lora equatorialis Dall, 1919: 44, pl. 13 fig. 2. ? Leucosyrinx equatorialis – McLean 1971a: 120, fig. 38. Type material Syntypes PACIFIC OCEAN • 3 specs; coast of Ecuador to Patagonia; depth 122–407 ftm; USNM 97092, 97070, 697384. Remarks The small shell (13.5 mm in shell length, according to the original description) is characterized by a very short siphonal canal, strong axial ribs extending from the subsutural ramp to the siphonal canal, and an extremely shallow, barely discernible anal sinus. These features exclude the species from Leucosyrinx. McLean (1971a: fig. 38) illustrated the radula of a specimen from the type series (USNM 97070), but due to the small size of the photograph, little can be discerned beyond the presence of duplex marginal teeth. This suggests that the species likely belongs to the family Pseudomelatomidae, though we are currently unable to determine its exact generic position. Distribution Type locality.

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2025-06-27
DOI
https://doi.org/10.5281/zenodo.16359592
Primary Topic
Marine Biology and Ecology Research
Type
article
Field-Weighted Citation Impact
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article

Lora equatorialis Dall 1919

Zenodo (CERN European Organization for Nuclear Research)
Marine Biology and Ecology Research
article

Lora equatorialis Dall 1919

article en

Abstract

Lora equatorialis Dall, 1919 (Pseudomelatomidae, genus assignment uncertain) Fig. 35B Lora equatorialis Dall, 1919: 44, pl. 13 fig. 2. ? Leucosyrinx equatorialis – McLean 1971a: 120, fig. 38. Type material Syntypes PACIFIC OCEAN • 3 specs; coast of Ecuador to Patagonia; depth 122–407 ftm; USNM 97092, 97070, 697384. Remarks The small shell (13.5 mm in shell length, according to the original description) is characterized by a very short siphonal canal, strong axial ribs extending from the subsutural ramp to the siphonal canal, and an extremely shallow, barely discernible anal sinus. These features exclude the species from Leucosyrinx. McLean (1971a: fig. 38) illustrated the radula of a specimen from the type series (USNM 97070), but due to the small size of the photograph, little can be discerned beyond the presence of duplex marginal teeth. This suggests that the species likely belongs to the family Pseudomelatomidae, though we are currently unable to determine its exact generic position. Distribution Type locality.

Zenodo (CERN European Organization for Nuclear Research)
Centre National de la Recherche Scientifique (FR), École Pratique des Hautes Études (FR), Swedish Museum of Natural History (SE), Sorbonne Université (FR), Institut de Systématique, Évolution, Biodiversité (FR), Severtsov Institute of Ecology and Evolution (RU)
Life below water
Openalex Percentile: Top 56%
Marine Biology and Ecology Research
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Lora equatorialis Dall 1919 · Zenodo (CERN European Organization for Nuclear Research) (2025) | TGRS Research Map | TGRS