Visit Our Diving Center
View our Accommodation
  • Nurkowanie
    • Kursy Nurkowanie
    • Nurkowanie z Przewodnikiem
    • Cennik
  • Zakwaterowanie
  • Oferty Specjalne
  • Usługi Wypoczynkowe
  • Miejsca Nurkowe
  • Gozo
  • O-Nas
  • Kontakt
Sklep Online Rejestracja na Nurkowanie
  • PL
    • EN
    • FR
    • DE
    • IT
  • Nurkowanie
    • Kursy Nurkowanie
    • Nurkowanie z Przewodnikiem
    • Cennik
  • Zakwaterowanie
  • Oferty Specjalne
  • Usługi Wypoczynkowe
  • Miejsca Nurkowe
  • Gozo
  • O-Nas
  • Kontakt
03. 09. 201511. 02. 2020

SPOTTED BERTHELLA & ORANGE BERTHELLA

Home » Blog » SPOTTED BERTHELLA & ORANGE BERTHELLA

Berthella

Berthella is a species of sea slug, marine gastropod molluscs in the family Pleurobranchidae, superfamily Pleurobranchoidea, order Pleurobranchomorpha, infraclass Opisthobranchia, subclass Heterobranchia, class Gastropoda and phylum Mollusca.

Berthella ocellata, the species to the left, can reach more than 50mm in length.  The main features of this species are the domed mantle, its dark brown colour and the lightly coloured ocelli fringed with white, which are characteristic and referred in the specific name.  The head veil is quite wide and pigmented of a slightly lighter brown than the body.  The rhinophores are articulate, light brown coloured and arranged in divergent orientation, towards both sides.  The mantle has numerous, different sized, round bumps that match the ocelli.  These bumps are fringed with white circles that can connect with those of adjacent ocelli.  The gill, located in the right side of the body, between the mantle and the foot, is bipinnate, yellowish and may have up to 25 lamellae on either side of the spine, which can be dotted in light brown.  The foot is wide and can emit defensive acid secretions.  Very little is known about feeding, breeding and other details of its biology.

Berthella aurantiaca, the species to the right, usually measures between 20 and 30mm in length.  The body colour is orange or red without markings or other colour patches.  The body is convex with occasional folds on the notum and the dorsal mantle is relatively small and does not completely cover the foot.  The flattened oral veil is highly developed when the animal is moving and has a trapezoidal shape.  The rhinophores are tubular and open at the distal end.  The gill is located under the right edge of the mantle, is bipinnate and has between 15 and 18 lamellae on both sides of the rachis.  The gill colour is slightly lighter than the rest of the body.  The foot is very wide, protruding from all the edges of the notum: front, sides and back.

Both of the above two species are usually found in dark caves, crevices or under large rocks, always at relatively shallow depths.

These photos were taken at a depth of 17m inside Billingshurst Cave, near Reqqa Point on Gozo’s north coast.

Photos taken by Brian Azzopardi

Powiązane Wpisy

Bath Sponge
05. 02. 2021

Bath Sponge (Spongia officinalis)

Spongia officinalis, better known as a variety of Bath Sponge, is a commercially used sea sponge.  Individuals grow in large...

Czytaj Więcej
Green Boring Sponge
09. 01. 202109. 01. 2021

Green Boring Sponge (Cliona viridis)

Cliona viridis, the Green Boring Sponge, is a species of demosponge found along the eastern coast of the Atlantic Ocean,...

Czytaj Więcej
Merry Christmas
11. 12. 2020

Merry Christmas & A Happy New Year 2021

Merry Christmas & A Happy New Year 2021 Wishing you all the best ! Happy Holidays from the Atlantis Gozo...

Czytaj Więcej

Reviews

Tolles Center für Sport- Tec und Rebreather Taucher. Bestens zu empfehlen 😃, immer wieder gerne hier 👍.
Manfred Kleemann
Manfred Kleemann
2022-05-23T05:51:17+0000
Our club goes out to Malta/Gozo every year and Atlantis was by far the best centre we have dealt with. The communication building up to the trip was great. So helpful. Our club has a mixed range of diver levels and Atlantis made sure that all our levels was covered. On arrival the welcome was very warming. They couldn’t have been more helpful. Once the admin and kit issue was done we was on our way. The end I’ve every day the team was on hand to assist us making sure we was all prepared for the following day. Nitrox, stages, fills and so on. The end of our trip the staff even came to the apartment to say farewell and seen us off. One of our club members left their regs by mistake but the team contacted us and meet us at the ferry port to return them. Thank you so much!!! We will be returning next year.
Alex Lucas
Alex Lucas
2022-04-21T07:36:58+0000
Highly recommended dive centre! We got all needed services in very friendly atmosphere. Thank you!!
Gedimas Usack
Gedimas Usack
2021-11-27T20:24:01+0000
I did a package deal of 10 dives with Atlantis and was extremely impressed from the get go. The center was very well equipped and maintained and the staff were awesome, totally committed to making sure everyone was welcomed and having fun whilst keeping a high level of professionalism. The guides (Denis, Georgia, Apollo, George) were very knowledgeable and friendly. I highly recommend Atlantis to anyone looking for a solid and trustworthy center with fair prices. P.s. Go in November, its way less busy and the vis is still good!
Jakob Wayne Víkingur Robertson
Jakob Wayne Víkingur Robertson
2021-11-18T01:22:10+0000
awesome place awesome people!
Richard Binks
Richard Binks
2021-10-20T05:07:13+0000
‹
›

Biuletyn

Zapisz się na nasz biuletyn i otrzymuj najnowsze wiadomości i oferty specjalne od zespołu nurkowego Atlantis! Tym samym zgadza się Pan/i na nasze Polityka Prywatności

Mailchimp
Sending
  • O-Nas
    • Kariera
    • Partner
  • Nurkowanie
    • Kursy Nurkowanie
    • PADI Kursy
    • CMAS & VDST Kurse
    • BSAC Courses
    • Kursy Specjalistyczne
    • Nurkowanie z Przewodnikiem
    • Nurkowanie Samodzielne
    • Nurkowania Technicznego
    • Wypożyczalnia sprzętu
    • Cennik
  • Miejsca Nurkowe
  • Usługi Wypoczynkowe
    • Zakwaterowanie
    • Transport z lotniska i na lotnisko
    • Wypożyczenie Samochodu
    • Wycieczka
  • Oferty Specjalne
  • Gozo
  • Galeria
    • Informacje o Autorze Zdjęcia
  • Kontakt

Copyright © 2023 Atlantis Diving Center. All rights reserved.
Polityka Prywatności | Zasady i Warunki | Refund Policy

Website designed & developed by