Pseudexomilus
| Pseudexomilus Temporal range:
| |
|---|---|
| Pseudexomilus fenestratus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Horaiclavidae |
| Genus: | Pseudexomilus Powell, 1944 |
| Type species | |
| † Pseudexomilus caelatus Powell, 1944
| |
Pseudexomilus is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae.[1] Members are found on the coasts of Australia and in the Indian Ocean.
Description
In the original description, Ponder described Pseudexomilus as follows:
It has a 2½-whorled blunt protoconch, tip smooth, remaining two whorls radially costate. The shell is tall-spired, Terebra-like, sculptured with wavy spiral cords crossed by obsolescent axials. The sinus is Daphnellid, descending obliquely and recurrently from the suture, more or less straight, but narrowly rounded at the apex before descending obliquely forward below the weakly defined shoulder.[2]
The genus has a moderately small shell measuring between 8–12 mm (0.31–0.47 in), is claviform with a tall spire and small ovate-quadrate aperture.[3][4] Pseudexomilus can be distinguished due to having a strongly contracted base, and a large and blunt apex.[4]
Taxonomy
The genus was first described by Baden Powell in 1944, who named Pseudexomilus caelatus as the type species.[2] It was placed as a likely member of the family Horaiclavidae in 2011.[5]
Distribution
Members of Pseudexomilus are found in the waters of Australia, Southern Africa and Oman.[6][7] Fossils of the species date to the lower mid Pliocene, and are found in South Australia.[3]
Species
Species within the genus Pseudexomilus include:[1]
- Pseudexomilus bicarinatus Shuto, 1983
- † Pseudexomilus caelatus Powell, 1944
- Pseudexomilus costicapitata (Verco, 1909)
- Pseudexomilus fenestratus Kilburn, 1988
- Pseudexomilus fuscoapicatus Morassi, 1997
- Pseudexomilus fuscobandatus Horro, Gori, Rosado & Rolán, 2021
- Pseudexomilus protemporalis Horro, Gori, Rosado & Rolán, 2021
- Pseudexomilus robini Horro, Gori & Renda, 2025
Gallery
-
-
-
Pseudexomilus fuscobandatus
-
Pseudexomilus protemporalis
References
- ^ a b Pseudexomilus Powell, 1944. Retrieved through: World Register of Marine Species on 10 November 2025.
- ^ a b Powell, A. W. B. (1944). "The Australian Tertiary Mollusca of the Family Turridae". Records of the Auckland Institute and Museum. 3: 3–68. ISSN 0067-0464. JSTOR 42905993. Wikidata Q58676624.
- ^ a b Powell, A. W. B. (1 November 1966). "The molluscan families Speightiidae and Turridae: an evaluation of the valid taxa, both recent and fossil, with lists of characteristic species". Bulletin of the Auckland Institute and Museum. 5. Auckland Institute and Museum: 138–139. ISSN 0067-0456. LCCN 67091267. OCLC 956602. Wikidata Q115098397.
- ^ a b Kilburn, R. N. (1 May 1988). "Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 4. Subfamilies Drilliinae, Crassispirinae and Strictispirinae". Annals of the Natal Museum. 29 (1): 167–320. hdl:10520/AJA03040798_392. ISSN 0304-0798. Wikidata Q94767201.
- ^ Bouchet, P.; Kantor, Yu. I.; Sysoev, A.; Puillandre, N. (26 July 2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of Molluscan Studies. 77 (3): 273–308. doi:10.1093/MOLLUS/EYR017. ISSN 0260-1230. Wikidata Q54552868.
- ^ "Pseudexomilus Powell, 1944". Global Biodiversity Information Facility. Retrieved 10 November 2025.
- ^ Horro, Juan; Gori, Sandro; Renda, Walter (29 October 2025). "Infralittoral Conoidea from Masirah Island, Oman, with description of a new genus and 25 new species". Bollettino Malacologico. 61 (2): 152–208. doi:10.53559/BollMalacol.2025.05.