Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae)
A description of Physa cubensis Pfeiffer, 1839, based on 15 speciments collected in Havana, Cuba, is presented. The shell, measuring 9.0 x 4,8mm to 12.3 x 6.4mm, is ovate-oblong, thin, diaphanous, horncolored, shining. Spire elevated, broadly conical; protoconch distinct, roundish, reddish-brown. Ab...
Published in: | Memórias do Instituto Oswaldo Cruz |
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Instituto Oswaldo Cruz, Ministério da Saúde
1987
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Online Access: | https://doi.org/10.1590/S0074-02761987000100003 https://doaj.org/article/c1c16ff50eaa4f0fbaa7f347681a3af4 |
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ftdoajarticles:oai:doaj.org/article:c1c16ff50eaa4f0fbaa7f347681a3af4 2023-05-15T15:15:10+02:00 Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) W. Lobato Paraense 1987-03-01T00:00:00Z https://doi.org/10.1590/S0074-02761987000100003 https://doaj.org/article/c1c16ff50eaa4f0fbaa7f347681a3af4 EN eng Instituto Oswaldo Cruz, Ministério da Saúde http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761987000100003 https://doaj.org/toc/0074-0276 https://doaj.org/toc/1678-8060 doi:10.1590/S0074-02761987000100003 0074-0276 1678-8060 https://doaj.org/article/c1c16ff50eaa4f0fbaa7f347681a3af4 Memórias do Instituto Oswaldo Cruz., Vol 82, Iss 1, Pp 15-20 (1987) Mollusca Physidae Physa cubensis taxionomia Taxonomy Arctic medicine. Tropical medicine RC955-962 Microbiology QR1-502 article 1987 ftdoajarticles https://doi.org/10.1590/S0074-02761987000100003 2023-01-08T01:34:56Z A description of Physa cubensis Pfeiffer, 1839, based on 15 speciments collected in Havana, Cuba, is presented. The shell, measuring 9.0 x 4,8mm to 12.3 x 6.4mm, is ovate-oblong, thin, diaphanous, horncolored, shining. Spire elevated, broadly conical; protoconch distinct, roundish, reddish-brown. About five moderately shouldered, roundly convex whorls, penultimate whorl expanded; spiral striation subobsolete; growth line faint on the intermediate whorls, clearly visible on the body whorl, crowded here and there. Suture well impressed. Aperture elongated 2.05 - 2.67 (mean 2.27) times as long as the remaining length of the shell, narrow obovulate-lunate; upper half acute-angled, lower half oval, narrowly rounded at the base; outer lip sharp, inner lip completely closing the umbilical region; a thick callus on the parietal wall; columellar plait well marked. Ratios: shell width/shell length - 0.52-0.61 (mean 0.55); spire length/shell length = 0.27 - 0.33 (mean 0.31); aperture length/shell length = 0.67 - 0.73 (mean 0.69). Oral lappets laterally mucronate; foot spatulate with acuminate tail. Mantle relection with 6 - 8 short triangular dentations in the right lobe (columellar side) and 4 - 6 in the left lobe (near the pneumostome). Renal tube tightly folded into a zigzag course. Ovotestis, ovispermiduct, seminal vesicle, oviduct, nidamental gland, uterus and vagina as in Physa marmorata (see Paraense, 1986, Mem. Inst. Oswaldo Cruz, 81: 459-469). Spermathecal body egg-shaped or pear-shaped; spermathecal ducta uniformly narrow with expanded base, a little longer than the body. Spermiduct, prostate and vas deferens as in P. marmorata (Paraense, loc. cit.). Penis wide proximally, narrowing gradually apicad; penial canal with subterminal outlet. Penial sheath following the width of the penis and ending up by a bulbous expansion somewhat narrower than the proximal portion. Penaial sheath/prepuce ration = 1,25 - 1,83 (mean 1.49). Prepuce much wider than the bulb of the penial shealth, moderately shouldered owing to the ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Memórias do Instituto Oswaldo Cruz 82 1 15 20 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Mollusca Physidae Physa cubensis taxionomia Taxonomy Arctic medicine. Tropical medicine RC955-962 Microbiology QR1-502 |
spellingShingle |
Mollusca Physidae Physa cubensis taxionomia Taxonomy Arctic medicine. Tropical medicine RC955-962 Microbiology QR1-502 W. Lobato Paraense Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) |
topic_facet |
Mollusca Physidae Physa cubensis taxionomia Taxonomy Arctic medicine. Tropical medicine RC955-962 Microbiology QR1-502 |
description |
A description of Physa cubensis Pfeiffer, 1839, based on 15 speciments collected in Havana, Cuba, is presented. The shell, measuring 9.0 x 4,8mm to 12.3 x 6.4mm, is ovate-oblong, thin, diaphanous, horncolored, shining. Spire elevated, broadly conical; protoconch distinct, roundish, reddish-brown. About five moderately shouldered, roundly convex whorls, penultimate whorl expanded; spiral striation subobsolete; growth line faint on the intermediate whorls, clearly visible on the body whorl, crowded here and there. Suture well impressed. Aperture elongated 2.05 - 2.67 (mean 2.27) times as long as the remaining length of the shell, narrow obovulate-lunate; upper half acute-angled, lower half oval, narrowly rounded at the base; outer lip sharp, inner lip completely closing the umbilical region; a thick callus on the parietal wall; columellar plait well marked. Ratios: shell width/shell length - 0.52-0.61 (mean 0.55); spire length/shell length = 0.27 - 0.33 (mean 0.31); aperture length/shell length = 0.67 - 0.73 (mean 0.69). Oral lappets laterally mucronate; foot spatulate with acuminate tail. Mantle relection with 6 - 8 short triangular dentations in the right lobe (columellar side) and 4 - 6 in the left lobe (near the pneumostome). Renal tube tightly folded into a zigzag course. Ovotestis, ovispermiduct, seminal vesicle, oviduct, nidamental gland, uterus and vagina as in Physa marmorata (see Paraense, 1986, Mem. Inst. Oswaldo Cruz, 81: 459-469). Spermathecal body egg-shaped or pear-shaped; spermathecal ducta uniformly narrow with expanded base, a little longer than the body. Spermiduct, prostate and vas deferens as in P. marmorata (Paraense, loc. cit.). Penis wide proximally, narrowing gradually apicad; penial canal with subterminal outlet. Penial sheath following the width of the penis and ending up by a bulbous expansion somewhat narrower than the proximal portion. Penaial sheath/prepuce ration = 1,25 - 1,83 (mean 1.49). Prepuce much wider than the bulb of the penial shealth, moderately shouldered owing to the ... |
format |
Article in Journal/Newspaper |
author |
W. Lobato Paraense |
author_facet |
W. Lobato Paraense |
author_sort |
W. Lobato Paraense |
title |
Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) |
title_short |
Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) |
title_full |
Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) |
title_fullStr |
Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) |
title_full_unstemmed |
Physa cubensis Pfeiffer, 1839 (Pulmonata: Physidae) |
title_sort |
physa cubensis pfeiffer, 1839 (pulmonata: physidae) |
publisher |
Instituto Oswaldo Cruz, Ministério da Saúde |
publishDate |
1987 |
url |
https://doi.org/10.1590/S0074-02761987000100003 https://doaj.org/article/c1c16ff50eaa4f0fbaa7f347681a3af4 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Memórias do Instituto Oswaldo Cruz., Vol 82, Iss 1, Pp 15-20 (1987) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761987000100003 https://doaj.org/toc/0074-0276 https://doaj.org/toc/1678-8060 doi:10.1590/S0074-02761987000100003 0074-0276 1678-8060 https://doaj.org/article/c1c16ff50eaa4f0fbaa7f347681a3af4 |
op_doi |
https://doi.org/10.1590/S0074-02761987000100003 |
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Memórias do Instituto Oswaldo Cruz |
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82 |
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1 |
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15 |
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20 |
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