Nudi Pixel: Nudibranchs and Sea Slugs Identification with Photographs

Chromodoris hintuanensis

Photographed by: Erwin Kodiat

Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Opisthobranchia
Order:	Nudibranchia
Suborder:	Doridina
Family:	Chromodorididae
Species:	Chromodoris hintuanensis

One of three Indian Ocean records, this specimen is clearly tiny, so difficult, but hintuanensis is the best best, esp. as the other records are from Sri Lanka.

These Indian ocean records all differ slightly from the western Pacific ones.

This individual is recognisable as Chromodoris hintuanensis by the dark rings around (some of ) the pustules in the centre of the mantle. It is atypical of the species though in that the caps of the pustules are yellow rather than cream as is typical. Perhaps its similarity to Risbecia pulchella, which also occurs at this locality, is not accidental. They are probably closely related (maybe even in the same genus), or they could be part of a mimicry ring.

A juvenile individual.

A juvenile individual

A resting juvenile individual.

Locality:

• Indonesia
  • Bali (100) Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
  • Lembeh (28) Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
  • Raja Ampat (4) Feb, Apr, Dec
  • Ambon (4) Jan, Apr, May, Dec
  • Komodo (3) Aug, Sep
  • Manado (2) Apr, Sep
  • Lombok (1) Sep
  • Alor (1) Jun
  • Bunaken (1) Jun
  • Gorontalo (1) Nov
  • Sangeang Island (1) Sep
• Philippines
  • Anilao (34) Jan, Feb, Mar, Apr, May, Jun, Aug, Sep, Oct, Nov
  • Puerto Galera (4) Apr, Aug, Sep, Oct
  • Davao (2) Dec
  • Dauin (2) Feb, Jul
  • Philippines (1) Mar
• Taiwan
  • North East Coast (3) Aug, Sep
  • Long Dong (2) Jul, Aug
• Vietnam
  • Nha Trang (3) Mar, May
  • Vietnam (3) Feb
• Thailand
  • Khao Lak (3) Jan, Nov
  • Phuket (3) May, Jun
  • Richelieu Rock (1) Jan
  • Thailand (1) Dec
• Myanmar
  • Myanmar (3) Apr, Nov
  • Mergui Archipelago (1) Feb
• PNG
  • Milne Bay (2) Feb
• India
  • Andaman & Nicobar Islands (1) Jan
• Sri Lanka
  • Nilaveli (1) Jul
  • Weligama (1) Apr
• Brunei Darussalam
  • Brunei Darussalam (1)
• Malaysia
  • Sabah (1) Mar

 

Pictures of Chromodoris hintuanensis

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