New Tachysurus

For the discussion of catfish systematics. Post here to draw our attention to new publications or to discuss existing works.
Post Reply
User avatar
Silurus
Posts: 12420
Joined: 31 Dec 2002, 11:35
I've donated: $12.00!
My articles: 55
My images: 893
My catfish: 1
My cats species list: 90 (i:0, k:0)
Spotted: 424
Location 1: Singapore
Location 2: Moderator Emeritus

New Tachysurus

Post by Silurus »

Shao, WH & E Zhang. Tachysurus latifrontalis, a new bagrid species from the Jiulong-Jiang basin in Fujian Province, South China (Teleostei: Bagridae). Ichthyological Research 2022 doi:10.1007/s10228-022-00867-0.

Abstract

Tachysurus latifrontalis, a new catfish species, is here described based on specimens collected from the Jiulongjiang River: a coastal river flowing into the South China Sea in Zhangzhou City, Fujian Province, South China. It belongs to the Tachysurus nitidus species group within the genus Tachysurus, defined by having a smooth anterior margin of the pectoral-fin spine, short maxillary barbels not extending to the base of the pectoral-fin spine, at least 20 anal-fin rays and a deeply forked caudal fin. This new species is distinct from the other two members of this group, Tachysurus nitidus (nec Sauvage and Dabry de Thiersant 1874) and Tachysurus fui (Miao 1934), in having a wider interorbital space [width 46.3–55.0% of head length (HL) vs. 34.3–45.5%], shorter nasal barbels (length 10.6–17.2% of HL vs. 18.1–29.2%), and a deeper body [depth at anus 17.4–27.6% of standard length (SL) vs. 13.4–22.5%]. It further differs from T. fui in having fewer anal-fin rays (20–23 vs. 27–33), a shorter (vs. longer) anal-fin base (length 22.1–28.2% of SL vs. 29.8–36.0%) and a gas bladder with (vs. without) beaded lateral and posterior margins, and from T. nitidus in having a shorter (vs. longer) (length 18.8–20.2% of HL vs. 30.8–37.4%) as well as blunt and rounded (vs. projected and slightly pointed) snout.
Image
User avatar
bekateen
Posts: 9332
Joined: 09 Sep 2014, 17:50
I've donated: $40.00!
My articles: 4
My images: 141
My cats species list: 145 (i:105, k:35)
My aquaria list: 41 (i:18)
My BLogs: 45 (i:150, p:2730)
My Wishlist: 35
Spotted: 183
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Re: New Tachysurus

Post by bekateen »

Attachments
Figure 1. Lateral (a) and ventral (b) views of Tachysurus latifrontalis sp. nov., IHB 201909039230, holotype, 113.1 mm SL; collected from Jiulong-Jiang at Zhangzhou City; lateral
Figure 1. Lateral (a) and ventral (b) views of Tachysurus latifrontalis sp. nov., IHB 201909039230, holotype, 113.1 mm SL; collected from Jiulong-Jiang at Zhangzhou City; lateral
Figure 6. Five patterns of body coloration within Chinese species of Tachysurus. a Tachysurus sinensis; b T. vachellii; c T. gracilis; d T. argentivattus; e T. trillineatus
Figure 6. Five patterns of body coloration within Chinese species of Tachysurus. a Tachysurus sinensis; b T. vachellii; c T. gracilis; d T. argentivattus; e T. trillineatus
Image
Find me on YouTube & Facebook: http://youtube.com/user/Bekateen1; https://www.facebook.com/Bekateen
Buying caves from https://plecocaves.com? Plecocaves sponsor Bekateen's Fishroom. Use coupon code bekateen for 15% off your order.
Also, for you Swifties: Https://youtu.be/ZUKdhXL3NCw
Post Reply

Return to “Taxonomy & Science News”