Aulacofusus canaliculatus Mclean & Clark 2023
- Dataset
- Seven new genera and thirty-four new species of buccinoid gastropods (Neogastropoda: Buccinidae) from the Aleutian Islands, Alaska
- Rank
- SPECIES
- Published in
- Mclean, James H., Clark, Roger N. (2023): Seven new genera and thirty-four new species of buccinoid gastropods (Neogastropoda: Buccinidae) from the Aleutian Islands, Alaska. Zootaxa 5351 (2): 151-201, DOI: 10.11646/zootaxa.5351.2.1, URL: http://dx.doi.org/10.11646/zootaxa.5351.2.1
Classification
- kingdom
- Animalia
- phylum
- Mollusca
- class
- Gastropoda
- order
- Neogastropoda
- family
- Buccinidae
- genus
- Aulacofusus
- species
- Aulacofusus canaliculatus
description
Description: Shell of medium size (to 6.7 cm, holotype), elongated fusiform, rather slender, tall spired; cream to orange-brown, cords typically darker; periostracum absent. Protoconch with two whorls; six teleconch whorls, early whorls with five cords; whorls rounded. Spiral cords strong, rounded in cross-section, five to six on penultimate whorl, and seven similar but smaller cords on the base, channels between cords about as wide or wider than cords. Aperture short, a little more than 1 / 3 of shell height, oval; canal constricted, relatively long, slender. Radula: Unknown.
description
Figures 14 A – B urn: lsid: zoobank. org: act: 813 CFA 64 - 9 AC 0 - 4 A 33 - 900 C-B 1 D 7264 F 6 B 0 A
discussion
Remarks: This species is similar to Aulacofusus periscelidus (Dall, 1891) (figs. 14 C – D), but differs in the more numerous (6 – 7 opposed to 4 – 5), lower, spiral cords which are rounded in cross-section. It also resembles Aulacofusus brevicauda (Deshayes, 1832) from which it differs in the much fewer spiral cords, 6 – 7 opposed to 14 – 16 in A. brevicauda.
distribution
Distribution: Central and western Aleutians, from Buldir Island (176 ° E) to S of Atka Island, Andreanof Ids. (174 ° W), at depths of 71 – 135 m. Habitat: On black sand and bedrock bottoms with a bottom temperature of 4.4 – 4.9 ° C.
etymology
Etymology: From the Latin, canaliculata, channeled, in regards to the deep channels between the spiral ribs
materials_examined
Type locality: SE of Agattu Island, Near Ids., Aleutian Is., Alaska (51 ° 47.79 N, 174 ° 45.8 E), 135 m. (NMFS 94 - 200201 - 143). Type material: Holotype, LACM 3667, 66.6 mm. (leg. RNC, 3 July, 2002, trawled, R / V Vesteraalen); Paratypes: Pt 1, RNC 4143, 53.3 mm. S of Buldir Island (51 ° 57.82 N, 176 ° 01.72 E), 71 m. (NMFS 23 - 200001 - 226).; Pt 2, SBMNH 169005, 56.24 mm. S of Atka Island, Andreanof Ids. (52 ° 06.15 N, 175 ° 53.53 W), 92 m. (NMFS 143 - 200401 - 94). Referred material: 1, RNC 4141, 47.8 mm. N of Atka Island, Andreanof Ids. (52 ° 08.14 N, 175 ° 07.59 W), 107 m. (NMFS 23 - 200001 - 103); 1, RNC 4099, 63.4 mm. S of Buldir Island (51 ° 58.38 N, 176 ° 05.04 E), 85 m. (NMFS 23 - 200001 - 227); 1, RNC 4568, 55.3 mm. Petrel Bank, Andreanof Ids. (52 ° 04.19 N, 179 ° 41.25 E), 75 m. (NMFS 143 - 201201 - 134).