Related FAQs: Nudibranchs, Nudibranchs 2, Nudibranch Identification, Nudi ID 2, Nudi ID 3, Nudi ID 4, & Nudibranch Behavior, Nudibranch Compatibility, Nudibranch Selection, Nudibranch Systems, Nudibranch Feeding, Nudibranch Disease, Nudibranch Reproduction, Berghia Nudibranchs, Marine Snails 1, Marine Snails 2, Marine Snails 3,  Marine Snails 4, Sea Slugs,  Seaslugs 2, Snail ID 1, Snail ID 2, Snail ID 3,  Related Articles: Dorid et al. Nudibranchs pt. 2, Aeolid Nudibranchs pt. 3, Sea Slugs, Gastropods, Mollusks, Aiptasia/Glass Anemones /The Conscientious Marine Aquarist Nudibranchs, The Naked-Gill Sea Slugs, pt. 5,  Dorids To: Pt. 1, Pt. 2, Pt. 3, Pt. 4, Pt. 6, Pt. 7, Pt. 8, Pt. 9, Pt. 10, Pt. 11, Pt. 12, Pt. 13, Pt. 14, Pt. 15, Pt. 16

By Bob Fenner

Genus Reticulidia:

Reticulidia halgerda Brunckhorst & Burn 1990. Black body, raised orange ridges with white borders are distinctive. Similar to Halgerda spp., but lack the circum-anal gills of the latter. Fiji image.

Family Polyceridae, Polycerid Dorids: Western Indian Ocean to Western Pacific; mostly tropical, some temperate. Many distinctive colored species. Characterized by elongated bodies, with gills on elevated part of their backs, short/slender mantles (with foot behind it). Their chemo- and tactical-sensory apparatus (rhinophores) are almost always branching (foliaceous). Feed on bryozoans, ascidians, cnidarians, other Nudibranchs... Genera Nembrotha, Roboastra, Tambja can be distinguished only by dissection: radula and sex organs in particular. Larger animals (up to 15 cm.) for Nudis... use their narrow, extendable throats as a suction pump in feeding (rather than as a scraping radula)... easier than many Nudis therefore to care for in captivity. Possible Aiptasia feeders.

Nembrotha cristata  N. Sulawesi (Lembeh Strait)

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Nembrotha kubaryana Bergh 1877. Indo-Pacific; South Africa to Micronesia. To 7 cm. N. Sulawesi (Lembeh Strait) pix.  http://www.seaslugforum.net/search.cfm?searchstring=nembrotha+kubaryana

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Verticals (Full/Cover Page Sizes Available) Linked

Nembrotha lineolata Western I.O and Pacific; Seychelles, Philippines, Western Australia, Fiji. To 4.5 cm. More than five lines on the body. Sea Squirt feeder. A fast-moving species. N. Sulawesi pix.

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To: Pt. 1, Pt. 2, Pt. 3, Pt. 4, Pt. 6, Pt. 7, Pt. 8, Pt. 9, Pt. 10, Pt. 11, Pt. 12, Pt. 13, Pt. 14, Pt. 15, Pt. 16