Biogeography and adaptations of torquaratorid acorn worms (Hemichordata: Enteropneusta) including two new species from the Canadian Arctic
The enteropneust family Torquaratoridae, discovered in 2005 (Holland et al. 2005) has the fewest species of the four living families. It is composed of seven species that live on the cold, deep-sea floor. Torquarator bullocki (Holland et al. 2005) was the first species described and collected from t...
| Main Authors: | , , |
|---|---|
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
NRC Research Press (a division of Canadian Science Publishing)
2018
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1807/91216 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0214 |
| Summary: | The enteropneust family Torquaratoridae, discovered in 2005 (Holland et al. 2005) has the fewest species of the four living families. It is composed of seven species that live on the cold, deep-sea floor. Torquarator bullocki (Holland et al. 2005) was the first species described and collected from the Northeastern Pacific. new species of Torquaratoridae were collected from the Eastern Pacific and described as Tergivelum baldwinae (Holland et al. 2009) and Allapasus aurantiacus (Holland et al. 2012). A further three species have been collected from the North Atlantic; Yoda purpurata, Allapasus isidis, and Tergivelum cinnabarinum (Priede et al. 2012). The latest Torquaratoridae species was collected from the Russian Arctic (Osborn et al. 2013). We add two new species to the Torquaratoridae from Baffin Bay, in the eastern Arctic of Canada. Terminstomo arcticus gen. and sp. nov. was collected at 505 meters depth and is characterized by lacking a heart, and a stomochord that extends from the posterior end of the proboscis through the entire length of the collar. Allapasus fuscus sp. nov. was collected from 444 meters depth and is characterized by a typhlosole process along the dorsal midline of the collar buccal cavity. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. |
|---|