Unidentified polyclad flatworm
This is not nudibranch or sea slug

Photographed by: Brent Murdoch
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Turbellaria |
| Order: | Polycladida |
| Species: | Unidentified polyclad flatworm |
Comment from Marian Litvaitis on photo #18529
It belongs to the family EuryleptidaeComment from Marian Litvaitis on photo #18457
It belongs to the family EuryleptidaeComment from on photo #10051
Unidentifiable juvenile chromodoridComment from Richard Willan on photo #14662
This photo show clearly that the animal is a polyclad flatworm. The structures on the head are auricles, not rhinophores. The animal is certainly very transparent and unique.Comment from Marian Litvaitis on photo #7534
This is an acotylean polycladComment from Marian Litvaitis on photo #4614
It's an acotylean polycladLocality:
- Kenya
- Malindi (118) Apr, Jul, Aug, Sep, Oct, Nov, Dec
- Watamu (69) Jan, Feb, Mar, Apr, Aug, Nov, Dec
- Kilifi Creek (6) Jan, Aug, Sep, Nov
- Wasini Island (2) Nov
- Mombasa (1) Sep
- Kilifi (1) Dec
- Indonesia
- Bali (66) Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Dec
- Lembeh (38) Jan, Feb, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec
- Ambon (15) Jan, Mar, May, Sep, Oct, Dec
- Raja Ampat (10) Jan, Feb, Mar, May, Oct, Dec
- North Sulawesi (6) Mar, May, Jul, Aug, Sep, Nov
- Manado (5) Jun, Oct, Nov
- Halmahera (5) Jun
- Wakatobi (4) May, Dec
- Bangka North Sulawesi (3) Apr
- Flores (3) Jun
- Banda Islands (3) Oct
- Taka Bonerate (2) Nov
- Bunaken (2) Aug
- Rinca Island (2) Oct
- Lombok (2) Mar
- Komodo (2) Feb, Jul
- Gili Lawa Laut (2) Jan
- Derawan (1) May
- Lampung (1) Mar
- Selayar Island (1) Nov
- Alor (1) Apr
- Weh Island (1) Dec
- Walea (1) Oct
- Makassar (1) Aug
- Siladen (1) Jun
- East Java (1) Mar
- Saparua (1) Oct
- Philippines
- Anilao (37) Mar, Apr, May, Jul, Oct, Nov, Dec
- Dauin (11) Jul, Sep, Oct, Nov, Dec
- Apo Island (6) Oct, Dec
- Coron (5) Jul, Nov
- Puerto Galera (5) Jan, Feb, Aug
- Malapascua (4) Jan, Jul, Aug
- Dumaguete (2) Apr, May
- Zamboanguita (2) Apr
- Negros (1) Nov
- Boracay (1) Jul
- Australia
- New South Wales (20) Jan, Mar, Apr, May, Jul, Aug, Sep, Nov, Dec
- Nelson Bay (5) Jan, Feb, Mar, Oct
- Fremantle (1) Mar
- Queensland (1) Nov
- Rockingham (1) Sep
- Victoria (1) Apr
- Malaysia
- Mabul (11) Apr, May, Jun, Jul, Sep, Oct
- Malaysia (7) May, Sep, Oct
- Tenggol (6) May, Aug, Sep, Oct
- Sipadan (4) Apr
- Tioman (3) May, Jul, Oct
- Lankayan (2) Mar, Jun
- Kapalai (2) May, Jun
- Redang (1) Sep
- Perhentian (1) Oct
- Aur - Dayang (1) May
- Sabah (1) Jan
- Layang Layang (1) Apr
- Palau
- Palau (8) Jan, Feb, Mar
- Nthn. Mariana Islands
- Saipan (7) Mar, Jul
- USA
- California (7) Jan, Feb, Mar, Jun, Sep
- La Jolla (2) Jan
- Oahu, Hawaii (2) May, Aug
- India
- Andaman & Nicobar Islands (6) Feb, Mar, Sep, Dec
- Gujarat (4) Mar, Oct, Dec
- Lakshadweep (3) Jan
- Ratnagiri (1) Dec
- Tanzania
- Zanzibar (6) Sep, Oct
- Thailand
- Similan Islands (5) Feb, Mar, Nov
- Koh Phi Phi (5) Apr, May, Aug, Sep, Dec
- Khao Lak (3) Feb, Nov
- Thailand (3) Jan, Feb, May
- Koh Bon (2) Apr, Dec
- Richelieu Rock (1) Feb
- Phuket (1) Sep
- Myanmar
- Mergui Archipelago (4) Jan, Nov
- Myanmar (1) Dec
- South Africa
- Port Elizabeth (4) Apr, Jun, Nov
- Umkomaas (1) Jan
- Sodwana Bay (1) Feb
- Cape Town (1) Feb
- Venezuela
- Venezuela (3) Mar, May
- Micronesia
- Kosrae (3) May, Jun
- Croatia
- Croatia (2) May, Sep
- Maldives
- Maldives (2) Mar
- Timor-Leste
- Timor-Leste (2) Feb, Dec
- New Zealand
- Poor Knights (2) Nov
- Egypt
- Sharm el-Sheikh (2) Apr, Sep
- Egypt (1) Mar
- Netherlands Antilles
- Vanuatu
- Vanuatu (1) Mar
- Oman
- Muscat (1) Sep
- Taiwan
- Taiwan (1) Aug
- North East Coast (1) May
- South Korea
- Jeju Island (1) Mar
- Mexico
- Bahía de los Ángeles (1) Jul
- Dominican Republic
- Dominican Republic (1) Apr
- Spain
- Costa del Sol (1) Jun
- Sri Lanka
- Sri Lanka (1) Mar
- Solomon Islands
- Solomon Islands (1) Oct
- Qatar
- Qatar (1) Apr