Slate pencil urchin

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Artwork of slate pencil urchin
Real-world info
Name: Heterocentrotus mammillatus
Family: Echinometridae
Main appearances

Other appearances
Names in other languages
 Oursin crayon
 Oursin crayon
 Erizo lápiz de pizarra
 Erizo lápiz de pizarra
 Riccio matita
 Грифельный морск. еж

The slate pencil urchin is a type of sea creature introduced in the Animal Crossing: New Horizons 1.3.0 Free Summer Update in July 2020. It appears from 4 PM to 9 AM as a medium-sized, medium-speed shadow from late spring to early fall.

Catch details[edit]

In New Horizons[edit]


Slate pencil urchin
"I got a slate pencil urchin! Its handwriting is gorgeous."

Time of year North: May – Sep
South: Nov – Mar
Time of day 4 PM – 9 AM
Shadow size Medium
Shadow movement Medium
Spawn requirement Catch 20 total sea creatures
Selling price  2,000 Bells
Furniture size 1.0 x 1.0

Donating to the museum[edit]

In New Horizons[edit]

When donating to the museum, Blathers will say the following:

"Slate pencil urchins are a type of sea urchin topped with thick, rounded spines that resemble sticks of chalk. These urchins' spines protect them not only from predators but from violent waves as well. Found in coral reefs, they're usually bright red, brown, or purple in color. For all those bright colors, one would think the slate pencil urchin to be quite deadly. But all those pretty colors, it seems, are just a pretty show"

The slate pencil urchin is located in the coral reef tank.


Names in other languages[edit]

Japanese パイプウニ
Pipe urchin

Korean 연필성게
Pencil urchin

Simplified Chinese 石笔海胆
shíbǐ hǎidǎn
Slate pencil urchin

Traditional Chinese 石筆海膽

Russian Грифельный морской еж
Grifel'nyy morskoy yezh
Slate pencil urchin

Dutch Griffelzee-egel Slate pencil urchin

German Griffelseeigel Slate pencil urchin

European Spanish Erizo lápiz de pizarra Slate pencil urchin

European French Oursin crayon Pencil urchin

Italian Riccio matita Pencil hedgehog (see Sea Urchin)