Erythrosquilla

Erythrosquilla is a genus of mantis shrimp, placed in its own family (Erythrosquillidae) and superfamily (Erythrosquilloidea) comprising two species:

  • Erythrosquilla hamano Ahyong, 2001
  • Erythrosquilla megalops Manning & Bruce, 1984

Erythrosquilla
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Stomatopoda
Suborder: Unipeltata
Superfamily: Erythrosquilloidea
Manning & Bruce, 1984 [1]
Family: Erythrosquillidae
Manning & Bruce, 1984 [1]
Genus: Erythrosquilla
Manning & Bruce, 1984 [2]
Species

Erythrosquilla hamano
Erythrosquilla megalops

The family is distinguished from other stomatopod families by the presence of a ridge on the mid-line of the telson.[3]

Erythrosquilla megalops

E. megalops is only known from the waters off Somalia, in the Indian Ocean, which gives rise to the generic name (Mare Erythraeum being an old name for the Indian Ocean).[2] The raptorial claws each have five teeth, rather than the 8–9 seen in E. hamano.[3]

Erythrosquilla hamano

E. hamano is known from Japanese water in the East China Sea and around Rottnest Island, Australia. This apparently disjunct distribution is also known in the parasquillid mantis shrimp Pseudosquillopsis dofleini. Among the differences between it and E. megalops, the most obvious is that it has more teeth on the raptorial claw than E. megalops.[3]

gollark: You can set the H/S/L yourself.
gollark: Perhaps.
gollark: ```osmarks@fenrir /tmp> fractalart --helpUsage: fractalart [OPTIONS]Optional arguments: -H, --width WIDTH width of generated image (default: 1000) -W, --height HEIGHT height of generated image (default: 1000) -o, --filename FILENAME filename to save generated image to (default: ./out.png) -h, --help display this help -v, --variance VARIANCE max color channel difference from previous pixel (default: 2048) -s, --saturation SATURATION base color saturation (default: 1.0) -l, --lightness LIGHTNESS base color lightness (default: 0.6) -u, --hue HUE base color hue (default: random) -r, --seed SEED random seed (default: random)```
gollark: I can tune a few of the parameters like this, see.
gollark: I don't know if it is actually fractal, but it *does* work!

References
  1. J. W. Martin & G. E. Davis (2001). An Updated Classification of the Recent Crustacea (PDF). Natural History Museum of Los Angeles County. pp. 1–132.
  2. Raymond B. Manning & A. J. Bruce (1984). "Erythrosquilla megalops, a remarkable new stomatopod from the western Indian Ocean". Journal of Crustacean Biology. 4 (2): 329–332. doi:10.2307/1548030. JSTOR 1548030.
  3. Shane T. Ahyong (2001). Revision of the Australian Stomatopod Crustacea (PDF). Records of the Australian Museum, Supplement 26. pp. 1–326. ISBN 0-7347-2303-2.
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