For #SundayFishSketch x Day 13 of 2026 #SciArtSeptember #Diamond here is the original "four-sided wing"—Tetragonopterus argenteus—later giving rise to the popular hobby name of "tetras". 🦑🐡🧪

For #SundayFishSketch x Day 13 of 2026 #SciArtSeptember #Diamond here is the original "four-sided wing"—Tetragonopterus argenteus—later giving rise to the popular hobby name of "tetras". 🦑🐡🧪
#SundayFishSketch
🐠Second page completed!
Top row: Tahnaichthys magnuserrata, Scalacurvichthys naishi, Flagellipinna rhomboides
Bottom row: Nursallia tethysensis, Sigmapycnodus giganteum, Hensodon spinosus
#paleoart
Day 13- #diamond
A Diamond Trevally (aka Indian Threadfin) - Alectis indica
From the Indo-Pacific
Silvery iridescence attempt. Defaulted to outlining in ink.
Not unhappy with it though.
Shine on you crazy diamond!
12. Teardrop. Teardrop butterfly fish. Don't love this, why did I make it so big?
#SciArtSeptember #SciArt #SundayFishSketch
8. Ruby. Ruby sea dragon. The third, most recently identified, species.
Does that count as a #SundayFishSketch (doodle) 😅 ... I haven't painted in a bigger format for ages so I done a grid.
But apparently I can't do math and had to redo it 🫠
Anyways - Guess what shark is will be 🦈
Surprised and Sad Sculpins. #SundayFishSketch
Mottled and Slimy!
#1 species whose names sound like curses from Captain Haddock: You spurdog, you mudshark, you Squalus acanthias!! #SundayFishSketch #sciart #spinydogfish
The #SciArtSeptember Day 6 theme of coral calls for a daisy parrotfish! Parrotfish play an important role in keeping coral reefs healthy - they feed on algae that would otherwise smother the coral #SundayFishSketch
Quick bluestreak cleaner wrasse, Labroides dimidiatus, for #SciArtSeptember and #SundayFishSketch “Coral” prompt. Going to try to catch up and keep up with more of the prompts the rest of the month.
and #SundayFishSketch
adorable!
#SundayFishSketch #paleoart
The series is slowly progressing, now the lineart for the next row is completed: adding Nursallia, Sigmapycnodus and Hensodon
The #SundayFishSketch #SciArtSeptember combo today for Day 6 Coral is the Exquisite Fairy Wrasse! I got black paper with my new colored pencils and wanted to see if I could make this guy’s bright white pop!
Fish post 2 of 2 today
Four shiners for this week’s “paint all the Kansas fish” self-imposed project.
Ref. 📷s: assorted state natural resource websites. So many states have great sites now.
For #SundayFishSketch x Day 6 of 2026 #SciArtSeptember #Coral here is a tiny baby Coris gaimard — and reference photo I can proudly say is my own! 🦑🐡🧪
Day 6 - prompt is #coral.
Post 1 of 2
A Pygmy Seahorse (Hippocampus bargibanti)
Covered in bulbous tubercles that mimic gorgonian coral polyps.
Adult size~ 2cm
Colored pencil on chipboard
Ref 📷: FishBase
6. Coral. Coral trout. Pretty happy with this one.
#SciArtSeptember and a convenient #SundayFishSketch