Published December 31, 2020 | Version v1

Martesia fragilis Verrill & Bush 1898

  • 1. Wetland Research and Training Centre, Barkul, Khordha, Odisha - 752030, India Email: debasish. marine @ gmail. com
  • 2. CSIR-Institute of Minerals and Materials Technology (IMMT), Bhubaneswar - 751013, India
  • 3. N. B. Mehta Science College, Bordi, Palghar, Maharashtra - 401701, India

Description

1. Martesia fragilis Verrill & Bush, 1898 (Figure 2 & 3)

1898. Martesia (Martesiella) fragilis Verrill & Bush, Proc. U.S. Nat. Mus. , 20: 777.

2017. Martesia fragilis: Subba Rao, Rec. zool. Surv. India, Occasional Paper No., 375: 440

Material examined: Dhamara offshore region (30 m depth), three live specimens were examined from a deteriorated wooden structure (Figure 1, Point 2, 20°26’55”N 87°55’27”E).

Diagnosis: Shell obliquely divided in the middle with angularly and longitudinally ribbed anterior half; posterior part with concentrically striated towards margin; one ventral shield and two dorsal shields upon the umbo present; one elongated and narrow shield on posterior part body is straighter and posterior part is brittle. Metaplax proportionately larger and lanceolate; mesoplax depressed and with concentric lines dorsally, and hypoplax is lanceolate (Mitra et al., 2010; Subba Rao, 2017).

Habitat: Found to be attached in the wooden pole and mangrove plants as borer.

Distribution: India: Odisha (Subarnarekha estuary; Offshore region of Dhamara estuary), Karnataka, Kerala, Maharashtra; Tamil Nadu, Gujarat and West Bengal, Andaman and Nicobar Islands (Mitra et al., 2010; Subba Rao, 2017). Elsewhere: Eastern Pacific; Indo-Pacific; West Atlantic.

Notes

Published as part of Mahapatro, Debasish, Sharma, Satyabrata Das & Kadam, Surendra S., 2020, On the record of two species of the family Pholadidae (Martesia fragilis and Martesia striata) off Dhamara Estuary (Odisha), Bay of Bengal, pp. 351-356 in Records of the Zoological Survey of India 120 (4) on pages 352-354, DOI: 10.26515/rzsi/v120/i4/2020/151327, http://zenodo.org/record/13185205

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Linked records

Additional details

Biodiversity

Scientific name authorship
Verrill & Bush
Kingdom
Animalia
Phylum
Mollusca
Order
Myida
Family
Pholadidae
Genus
Martesia
Species
fragilis
Taxon rank
species
Taxonomic concept label
Martesia fragilis Verrill, 1898 sec. Mahapatro, Sharma & Kadam, 2020

References

  • Mitra, S., Mishra, A. and Pattanayak, G. 2010. Inter-tidal macrofauna of Subarnarekha Estuary (Balasore: Orissa). Rec. zool. Surv. India, Occ. Paper No., 313: 1 - 135.
  • Subba Rao, N. V. 2017. Indian Seashells (Part- 2): Bivalvia. Rec. Zool. Surv. India, Occ. Paper No. 375: 1 - 568.