Translation Series No By Francisco Leccia Mago

Transcription

1 FISHERIES RESEARCH BOARD OP CANADA Translation Series No New additions to Venezuela's ichthyofauna By Francisco Leccia Mago Original title: Nuevas adiciones a la ictiofauna de Venezuela. I. Gempylidae. From: Acta Biologica Venezuelica. Universidad Central de Venezuela, Facultad de Ciencias, Escuela de Biologia, Caracas, Venezuela. Vol. 4, (13), pp , Translated by the Translation Bureau(THDS) Foreign Languages Division *epartment of the Secretary of State of Canada 5 pages typescript Fisheries Research Board of Canada Biological Station St. Andrews, New Brunswick 1968

2 ,f t, r. DEPARTMENT OF THE SECRETARY OF STATE ' TRANSLATION BUREAU FOREIGN LANGUAGES DIVISION p_ç; Ael 7 7:s SECRÉTARIAT D'ÉTAT BUREAU DES TRADUCTIONS DIVISION DES LANGUES ÉTRANGÈRES CANADA YOUR NO. DEpARTMENT DIVISION/BRANCH CITY. VorrtE N MINISTRE DIVISION/DIRECTION VILLE Fisheries Fisheries Research Ottawa Board OUR NO. LANGUAGE TRANSLATOR (INITIALS) DATE NOTRE N LANGUE TRADUCTEUR (INITIALES) 3081 Spanish. THDS. July 11, DISCUSSION: Our identification is based on a manuscript by Randall (unpublished). According to that author there are five species of Hemipteronotus (formerly Xyrichthys) existing in the Atlantic: Novacula, Spiel:Wens, Blanchardi, Martinicmnsis, and Sanctaehelenae. H. Novacula is recognizable because the ni st two dorsal spines are more flexible than the rest, by the number of gill rakers (17-22), a rounded caudal, a large suborbital area and a diagonal line of small scales behind and under the eye and reaching the vertical line which passes through the centre of the eye. The difficulty in distinguishing between the Western Atlantic Xyrichthys psittacus and those of the Mediterranean X. Novacula has already been established by Jordan and Everman (1898:1619) in the following terms: uwe have compared numerous specimens from Pensacola and Charleston with all the descriptions available of the Mediterranean species, and can find no difference whatever. We are, however, unmilling tolalace X. Psittacus in the synolt of X. Novacula without actual comparison of specimensu. DISTRIBUTION: Mide in the Atlantic. On the American Coast from South Carolina to Bahia, Brazil. The present registry complements existing information of the type which appears in Venezuela. Common Name: Dogtooth. I UNI',DIT DRAFT TR ANSI, A TiON, Only for information TRADUCTION NON 1-17, l;--;ee: Iniorrnotion seule writ Jr

3 (Page 2) GEMPDLIDAE Ruvettus pretiosus COCCO Fig. 5 Ruvettus pretiosus COCCO in the Sicilian Science Journal, vol. 42, page (Messina, Italy). (Copied reference) MATERIAL EXAMINED: h specimen of 921 MM. common length caught on a hook at an approximate depth of 200 metres, 500 metres from the shore in the bay of Chichiriviche, Federal District on the third of April, The specimen was, unfortunately, spoiled because of faulty refrigeration and left only the photograph and a fem counts and. measurements made by the author. USCRIPTION: Jordan and Everman (1896: 879) COLOURING: The fresh specimen's body was of a greyish brown colour, slightly darker on top. All the fins were of the same colour as the body, except that their edges were darker. The inside of the mouth was dark. r' Fig. 5. COUNTS: Dorsal Rays Ruvettus Pretiosus, 921 mm. common length, Bay of Chichiriviche, Federal District. DETAILS OF COUNTS', MEASURES AND PROPORTIONS OF THE SPECIMEN XIV ld-e 2 small fins Anal Rays X 2 small fins Measurements (in'millimetres) Common length ' Head Mouth 91.0 Pupil 213'

4 (Page 3) Table con't. Eye Postorbital. Length Of the upper màndible Maximum depth of the body Minimum depth of the peduncle Mouth to the 1st dorsal Mouth to the 2nd dorsal Prepectoral Preanal Pre-pelvic Pectoral length,longest Length of the/anal.ray Length of the longest ray of the 2nd Dorsal Proportions: Head to the common length Depth of the body to the common length Depth of the peduncle to. the common length Mouth to the 1st dorsal to the common length Mouth to the 2nd dorsal to the common length Pre-pectoral to the common length Pre-anal to the common length Pre-pelvic to the common length Pectoral length to the common length Mouth to the head Eye to the head Postorbital to the head Upper Mandible to the Head

5 (Page 4) DISCUSSION: The genus Revettus is monotypic. Its only species, pretiosus, has a wide distribution. The genus differs from other members of the Gempylidae family (except Lepidocybium) in the absence of/the diffused state of the lateral line. The absence of a caudal keel and the number of dorsal spines make it different from the Lopidocybium. DISTRIBUTION: Briggs (1960) included a R. protiosus in his list of circumtropical species. In the Western Atlantic they have been noted from Newfoundland to the Antilles. The present registry extends thefr class to Venezuela and the rare occurence of catching this specieealthough the ce>14 specimen was spoiled, is considered to be very important. Common name: The Student.. OPISTHOGNATBIDAE Opisthognathidae macrognathus POIL. Opisthognathidae macrognathus Poey, Notts.on the Natural History of the Island of Cuba, Vol 2, Page 284, 1860 (Cuba). SPECIMINS EXAMINED: MBUCV-V-2300 (2 males, mm. common length, mm. total length), Mochima Bay, State of Sucre, the 26th June, MBUCV-V-2550 (3, two females and one male, 'um. common length, mm, total length), Great Bishop's Lagoon, cariaco Gulf, State of Sucre, 8th August, (it The actual text on page 404 shows 3 specimens caught in Mochima Bay but only two signs for males appear - translator's note.) The specimens were caught on a hook amongst coral renfs in Mochima Bay, State of Sucre and in the Great Bishop's Lagoon, Cariaco Gulf, respectively. DESCRIPTION: Jordan and Everman (1898:2281, plate 331, figures 800 and 800a). COLOURING: The preserved specimens are of a brown colour with six dark vertical bands. The bands, with t;he exception of the one on the last caudal peduncle, are extended upwards over the dorsal and underneath are mixed with

6 (Page 5) whitish spots which form a netlike pattern most noticable in the isthmus and the post-pelvic region. The internal membrane of the maxillary has two very black 'Wu shaped bands on a white background with a yellow gold band inside. Yellowish pectorals with dark spots. The dorsal has a black mark over the 7th and 9th rays, not so heavily marked on the females. dark caudal, pigmented, with two pale areas at the base. D pelviceem _ 1 ct.a4. am_à and anal?, finely pigmented. A