Oliva reticulata (Röding, 1798)

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Alessio Papi
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azona Dautzenberg, 1927 Oliva sanguinolenta var. pallida Dautzenberg, 1927 Oliva sanguinolenta var.

1 theoliva Oliva reticulata (Röding, 1798) Maurizio A. Perini 2011 Card n.02 ~ Revision: 02/2011 ~ Page 1-8 Synonyms Porphyria reticulata Röding, 1798 Oliva zigzag Perry, 1811 Oliva sanguinolenta Lamarck, 1811 Oliva sanguinolenta var. azona Dautzenberg, 1927 Oliva sanguinolenta var. pallida Dautzenberg, 1927 Oliva sanguinolenta var. zebra Küster in Weinkauff, 1878 Oliva reticulata (Röding, 1798) Introduction This is another oliva species named in 1798 by Röding in his Museum Boltenianum (n.396). This shell is easily identifiable because certain features are constant. Among these, the most obvious is the color of the columella which is orange, whose intensity is related to the color of the shell. The intraspecific variability is mainly limited to color, design and size while the proportions of the shell are constant. In Oliva reticulata the color is cryptic, so in black volcanic sand the shells are darker (Plate 1). The adult specimens have a size among 35mm and 50mm. Plate 1. Oliva reticulata (Röding, 1798). A (CMAP 1979, 46.30mm) Australia. B (CMAP 1734, 46.50mm) New Caledonia. C (CMAP 1366, 46.35mm) Philippines. D (CMAP 2661, 46.20mm) Indonesia

Plate 2. Oliva reticulata (Röding, 1798). A The posterior callus is often raised. B The filament channel is narrow, nearly always open. On the spire many tangential strokes are present.

In Panglao island Oliva riticulata was found at low tide, while at Boljoon beach, southern Cebu island it was found at about 3 meters deep.

2 Plate 2. Oliva reticulata (Röding, 1798). A The posterior callus is often raised. B The filament channel is narrow, nearly always open. On the spire many tangential strokes are present. Live mollusk The following pictures were taken in Panglao Is. and Cebu Is., Philippines. In Panglao island Oliva riticulata was found at low tide, while at Boljoon beach, southern Cebu island it was found at about 3 meters deep. In Panglao Oliva reticulata was found syntopic with Oliva carneola (Gmelin, 1791) and Oliva hirasei Kira, Plate 3. Oliva reticulata (Röding, 1798). A we can see how the siphon is not a pipe but a lobe of mantle normally rolled. In B we can clearly see the opening of the pouch-foot present below the metapodium

Habitat at Bali island (Indonesia) and Cebu island (Philippines) These two localities very far one to the other have demonstrated that Oliva reticulata live near to the

At Boljoon beach (Cebu Is.) Oliva reticulata was found to be syntopic with Oliva carneola (Gmelin, 1791). Plate 4. Oliva reticulata (Röding, 1798).

3 Habitat at Bali island (Indonesia) and Cebu island (Philippines) These two localities very far one to the other have demonstrated that Oliva reticulata live near to the grasslands of seagrass where the substrate is quite compact. This is rather unusual because the olives generally prefer live in not compact and clean sand. At Boljoon beach (Cebu Is.) Oliva reticulata was found to be syntopic with Oliva carneola (Gmelin, 1791). Plate 4. Oliva reticulata (Röding, 1798). Nusa Dua beach, Bali Island, Indonesia. (by G. Centomo). Iconography Plate 5. Oliva reticulata var. pallida Dautzenberg, Juvenile specimens with size from 24.15mm to 33.80mm. Bohol Is., Philippines. (CMAP 2010, 41sp.) - 3 -

4 Plate 6. Oliva reticulata (Röding, 1798). (CMAP 2846, 2847 and 2848) Size from 42.60mm to 47.00mm Sarunda Bay, Espiritu Santo Is., Vanuatu. Plate 7. Oliva reticulata (Röding, 1798). (CMAP 0318, 0319 and 0320) Size from 44.60mm to 47.80mm. Pellikoulo Bay, Espiritu Santo Is., Vanuatu

5 Plate 8. Oliva reticulata (Röding, 1798). (CMAP 1722, 1723 and 1724) Size from 45.50mm to 47.30mm. Ouegua, North New Caledonia. Plate 9. Oliva reticulata (Röding, 1798). (CMAP 0458, 0460 and 0461) Size from 41.30mm to 45.65mm. Marapa Islet, Marau Island, Solomon Islands

6 Plate 10. Oliva reticulata (Röding, 1798). (CMAP 0586, 0587 and 0584) Size from 40.00mm to 42.20mm. Quezon province, Luzon Island, Philippines. Plate 11. Oliva reticulata (Röding, 1798). B (CMAP 1979, 1981 and 1980) Size from 46.30mm to 48.30mm. Near Little Trunk Reef, Queensland, Australia

7 Plate 12. Oliva reticulata (Röding, 1798). (CMAP 2606, 2605 and 2607) Size from 44.15mm to 50.60mm. Panglao Island, South of Bohol Is., Philippines. Plate 13. Oliva reticulata (Röding, 1798). D (CMAP 3374, 3373 and 3372, size from 41.00mm to 42.85mm. Palawan Island, Philippines

, Indonesia and were collected by B.O. in June, 2000.

8 Plate 14. Oliva reticulata (Röding, 1798). These shells come from Raas Island, North-East of Java Is., Indonesia and were collected by B.O. in June, In the batch of over 20 specimens mostly adult have size under 38.00mm. (CMAP 3529). Plate 15. Oliva reticulata (Röding, 1798). Size from 15.30mm to 42.55mm, Bohol Is., Philippines. (CMAP 2010, 41sp.)

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