Turbellarian taxonomic database

Crucimusculata Dakuidae Diagnosis


Hooge MD 2003 (citation) Male copulatory organ a glandular penis surrounded by seminal vesicle with thick
muscles
in well-defined longitudinal and circular orientations.  Conical glandular penis composed of granular
lamellae-like cells surrounding a lumen that opens to subterminal male gonopore.  Seminal vesicle with thin
strap-like outer-longitudinal muscles, and thick (~7 ┬Ám) inner-circular fibers.  Sperm with axial
microtubules
and 9 + 2 axoneme.  Ventral body-wall musculature with straight longitudinal muscles between frontal pore
and
mouth, and lacking anterior ventral diagonal muscles positioned between outer circular and inner
longitudinal
muscles. 

[From Hooge MD (2003)]


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