Paraturbanella brevicaudatus   Rao,  1991 (Gastrotrich)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Gastrotricha
Class:
Order:Macrodasyida
Family:Turbanellidae

Description
Size: Length 660 µm and width 85 µm.

Body dorsoventrally flattened, ribbon-like, widest in the middle and tapers moderately towards the posterior end. Head is distinct, demarcated from the rest of the body by a narrow neck and measures about 70 µm at its widest part. The head is somewhat triangular in outline with a blunt anterior end and bears laterally 2 piston pits. Posterior end of the animal is cleft into 2 short, round caudal lobes about 8 µm in length. Between the 2 caudal lobes occurs a median anal cone about 6 µm in length.

The cuticle is smooth, thin and transparent. 8-10 pairs of dorsolateral epidermal glands 6 µm in maximum diameter occur extending between the head and the tail. Ventral ciliation occurs in 2 lateral longitudinal bands. Sensory bristles 10-15 µm long occur sparsely on the anterior border of head and the lateral margins of the trunk. The anterior adhesive organ consists of 2 groups of tubes implanted on well developed mobile protuberances of the cuticle. Each group consists of 6 tubes of equal length measuring about 8 µm and directed anteriorly. The lateral adhesive tubes are much reduced. They are represented by a pair posteriorly directed ventrolateral feet located behind the anterior feet and about the mid-pharyngeal region. Each foot bears 2 tubes of unequal length, measuring about 30 µm and 20 µm, respectively. Each caudal lobe supports 5 posterior adhesive tubes, the outer ones being longer than the inner ones. The tubes measure 10-15 µm in length. The mouth is 15 µm wide and terminal. The buccal cavity is spacious and cylindrical with a lining of thick cuticularized walls. The pharynx is about 210 µm long and occupies nearly 1/3 of the total gut length. The pharyngeal pores are conspicuous and situated close to the posterior end of pharynx. Anus is subterminal and opens on the ventral surface about 20 µm from the posterior border.

The paired testis and ovary are situated lateral to the intestine.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Demersal, Sandy, Coastal

Biogeography


• Lakshadweep, Kavaratti (Lat: 10.55) (Long: 72.63) INDIA (Record: 17/02/1983, 19/02/1983) (Depth: 0.1 mts)
• Lakshadweep, Kavaratti INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Rao, GC (1991) Meiofauna State fauna series 2: Fauna of Lakshadweep ZSI, Calcutta 41-135 Available at - NIO, Goa
  • Priyalakshmi, G and Menon, NR (2008) Indian marine Gastrotricha Available at - http://www.gastrotricha.unimore.it/Indian-marine.pdf
  • Sealifebase Available at - http://www.sealifebase.org/

Page last updated on:2010-11-22

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