Morfología y distribución de Thysanophora crinita (Stylommatophora: Thysanophoridae) en Nicaragua / Morphology and distribution of Thysanophora crinita (Stylommatophora: Thysanophoridae) in Nicaragua
Rev. biol. trop
; 50(1): 107-116, Mar. 2002.
Article
in Spanish
| LILACS
| ID: lil-333044
Responsible library:
BR1.1
RESUMO
A morphological characterization of Thysanophora crinita (Fulton, 1916-1917), including a redescription of the shell and the first description of the genital system, the radula and the jaw, are made based on 58 living individuals and 1378 empty shells; the sample considered for biometry was of 81 specimens. Means and ranges were 3.51 mm (2.6-4.9) diameter and 2 mm (1.5-2.5) height. This species exhibits a discoidal-depressed shell, with an opaque hairy periostracum as its most remarkable feature. The genital system is typical of the genus, with a well developed penis and a pear-shaped bursa copulatrix. Jaw 16 to 18 narrow plates and radula with 72 transversal rows, formula (C/3 + 5L/2 + 6M/2) x 2. The Nicaraguan populations of T. crinita are very similar to T. crinita from Cartagena and T.c. arubana, and show dimensions intermediate between both. This species was previously known from Carthagena, Colombia and is reported from Nicaragua for the first time. A distribution map is included.
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Collection:
International databases
Database:
LILACS
Main subject:
Genitalia
/
Jaw
/
Mollusca
Limits:
Animals
Country/Region as subject:
Central America
/
Nicaragua
Language:
Spanish
Journal:
Rev. biol. trop
Journal subject:
Biology
/
Tropical Medicine
Year:
2002
Document type:
Article
Affiliation country:
Nicaragua