Document Details

Document Type : Article In Journal 
Document Title :
Hofstenia arabiensis Nov. Sp. (Hofsteniidae): ANew Species of Acoelan Turbellaria from theRed Sea North of J eddah
((هوفشتينيا آرابينسيس)) (عائلة هوفشتينيدي) : نوع جديد من ديدان التيربلاريا بالبحر الاحمر شمال جدة
 
Subject : Zoology 
Document Language : English 
Abstract : A new Acoelan worm. Hofstenia arabiensis was found alive on the brown algae Sargassum vulgare (J.G. Agardh), and Cystoseira myrica, in the reef flat shoreward of the fringing reef in front of the Old King's Palace, North of Jeddah (Saudi Arabia). It is elongated having an anterior tip and a blunt posterior end. The color of the body is nearly yellowish red. The living worm is about 5 mm long and its breadth reaches about 1.25 mm. Nearly 35 specimens of this worm were collected during the month!; of May and June 1986. Reconstructions of the'new species were drawn from the median sagittal position by the exami!1ation of transverse, longitudinal and frontal sectipns of the worm stained by Haematoxylin-eosin and Mallory stain. This worm is related to the genus Hofstenia due to the fact that it has an integumentary nerve plexus. The mouth aperture is subterminal. The pharynx is strongly muscular. Vesicula seminalis is present and the ovary is follicular. It is a new species due to the fact that the worm is tubular, having a rounded anterior tip and a blunt and smooth posterior end: It has a yellowish red color. The worm has a network subepidermal nerve plexus extending from the anterior tip of the body till the end of its first half, moreover, the central brain mass surrounding the statocyst is totally absent. The penis bulb is provided with only 4 chitinised spines. The sunk epithelial layer of the pharynx is unciliated and the oesophagus is missing. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 3 
Issue Number : 1 
Publishing Year : 1411 AH
1991 AD 
Number Of Pages : 25 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
سمير بلتاجي S. BELTAGIResearcher  
عبدالله سراج مندورةA. S. MANDURAResearcher  

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