Plesiophysa dolichomastix sp. n. (Gastropoda: Planorbidae).

نویسنده

  • W Lobato Paraense
چکیده

A new species of planorbid mollusc, Plesiophysa dolichomastix (Greek dolichos = long, mastix = flagellum), collected from Lagoa da Pedra, municipality of Santa Rosa, state of Goiás, Brazil (15 degrees 01'S, 47 degrees 13'W) is described. It is indistinguishable by the shell characters from the five congeneric species described so far: P. striata (Orbigny, 1841), P. granulata ("Shuttleworth" Sowerby, 1873), P. guadeloupensis ("Fischer" Mazé, 1883), P. ornata (Haas, 1938) and P. hubendicki Richards & Ferguson, 1962. It differs from the anatomically studied species in the following characters: about 50 ovotestis diverticula, against 12 in granulata, 100 in ornata, unstated in hubendicki; and length of flagella - about as long as the penial complex -, against about 1/3 to 1/6 in the other three.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The genus Plesiophysa, with a redescription of P. ornata (Haas, 1938) (Gastropoda: Planorbidae).

A redescription of conchological and anatomical characters of the planorbidae mollusc Plesiophysa ornata (Haas, 1938) is presented, based on topotypic material and specimens from 14 additional localities in the Brazilian states of Rio Grande do Norte, Paraíba, Sergipe, Bahia, Espírito Santo and Minas Gerais. Due to the close similarity of their shells, a sure discrimination of the five species ...

متن کامل

The Bulinus nasutus complex (Bulinus nasutus (Martens, 1879) and Bulinus productus Mandahl-Barth, 1960) (Gastropoda: Planorbidae) in the Lake Victoria area elucidated by enzyme-profile electrophoresis and natural infections with Schistosoma spp. (Trematoda: Schistosomatidae)

Steenstrupia Jelnes, J. E., F. W. Thiongó, N. J. S. Lwambo & J. H. Ouma. The Bulinus nasutus complex (Bulinus nasutus (Martens, 1879) and Bulinus productus Mandahl-Barth, 1960) (Gastropoda: Planorbidae) in the Lake Victoria area elucidated by enzyme-profile electrophoresis and natural infections with Schistosoma spp. (Trematoda: Schistosomatidae). – Steenstrupia 27 (2): 257–262. Copenhagen, Den...

متن کامل

Preliminary Study on Aquatic Snail Species of Bulinus globosus (Morelet, 1866) (Mollusca: Gastropoda: Planorbidae) from Nankumba Peninsula, Cape Maclear Island, South-East Arm of Lake Malawi

The present investigation of shallow-water gastropod Bulinus globosus is reported on nearshore sites in and around Cape Maclear on the northwestern part of the Nankumba Peninsula, Lake Malawi (part of Lake Malawi National Park) at a depth of 10 M. The present remark focuses on the geographical distribution and habitats of this group and sample have observed in Cape Maclear Island, Republic of M...

متن کامل

Freshwater snails and schistosomiasis mansoni in the state of Rio de Janeiro, Brazil: VI--Noroeste Fluminense Mesoregion.

In this paper, the last of a series dealing with the survey of freshwater gastropods of the state of Rio de Janeiro, the results of collections carried out in the Noroeste Fluminense Mesoregion from 2002 to 2005 are presented and revealed the occurrence of 20 species: Antillorbis nordestensis; Biomphalaria glabrata; B. straminea; B. tenagophila; Drepanotrema anatinum; D. cimex; D. depressissimu...

متن کامل

Biomphalaria subprona (Martens, 1899) (Gastropoda: Planorbidae).

A description is given of the shell, head-foot, pulmonary wall, reproductive system and radula of Biomphalaria subprona (Martens, 1899). A diagnosis between it and two other congeneric species under 10 mm in shell diameter occurring in Middle America (Biomphalaria helophila and B. schrammi) is presented.

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Memorias do Instituto Oswaldo Cruz

دوره 97 4  شماره 

صفحات  -

تاریخ انتشار 2002