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6

(1837-1884)
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G

vel in colhim transiens, posteriora versus declive,
utrin-que dilatafcura, inargine latera supereminens et in
poda-riuni pius minusve impendens. Pal I i inn subcoriaceuni,
testa externa vel interna nulla; pagina supera laevis,
aut punctata, aut verrucosa vel pustulis obtecta, aut
lineis elevatis pervagata; inargine planulato, turaminulis
minutis cribrose pertuso (cnidoporis); pagina inferior
antice branchiis, postice lamellis lateralibus ornata.
Latera (trunci) pius minusve excavata; antice altiora et
superiora versus in fossain coecam depressa. In dextro
latere sub t’ossa coeca postice apertura genitalis
observatur, magis versus pusteriora situs anus. Podarium
reptile, sat validum, sublanceolatum, trunco paulo
an-gustius sed postice vix brevius; inargine anteriore vix
subsulcato; solea oblonga, posterius angustiore, in
pos-teriore media parto pius minusve longitudinaliter distincte
sulcata.

LAMELLAE BRANCHIALES confertae, tenues, alternatim
in-aequales, anteriora versus declives, postice abruptae;
intim ae ex sinu rimaeformi coeco in suprema parte lateris
anterioris emergentes.

LAMELLAE LATEHALE.S pallii paginani inferiorem occupant;
laminae breviores vel longiores, pius minusve crassae,
inaequales, obliquae , suparallelae, ut plurimum
fo-liaceae.

APERTURA GENITALIS cum foramine duplici; ex anteriore
penis prodit exsertilis, conicus vel flagellit’ormis.

PORUS RENALIS minutus, inter aperturam genitalem et anum
situs.

ANUS verruca prominula, subconica, apice perforata, inar-

ginem lamellarum lateralium t’ere attingens.

* *

BULBUS PHARYNGEUS validus , brevis, crassus, modo in
anteriore parte mandibulis lateralibus tectus, pulpa
radulae vix vel pauluni prominente.

MAN 1)1 BUL AE conjunctae pelvi tonsorio fundo fisso vable
similes. Mandibula valida, ovalis, curvata, in interna

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