. Bulletin of the British Museum (Natural History) Zoology. Pseudoceros flavolineatus: A, dorsal surface of body in life; B, cerebral eye-cluster; C, posterior region of cleared preserved Pseudoceros fuscomaculatus: A, anterior half of body in life (dorsal view); B, arrangement of eyes. Description (). Three preserved specimens and a water-colour painting of this species are available. The paint- ing is of an elongate-oval polyclad about 100 mm long and up to 60 mm wide. Its dorsal surface is reddish brown with numerous narrow yellow lines slanting postero-laterally
. Bulletin of the British Museum (Natural History) Zoology. Pseudoceros flavolineatus: A, dorsal surface of body in life; B, cerebral eye-cluster; C, posterior region of cleared preserved Pseudoceros fuscomaculatus: A, anterior half of body in life (dorsal view); B, arrangement of eyes. Description (). Three preserved specimens and a water-colour painting of this species are available. The paint- ing is of an elongate-oval polyclad about 100 mm long and up to 60 mm wide. Its dorsal surface is reddish brown with numerous narrow yellow lines slanting postero-laterally from median line to margin of body (). Along the margin there is an irregular double row of black speckles. Ventral surface pinkish with black marginal band. Tentacles promi- nent, blackish, tipped with white. When preserved, the body is oval and measures up to 40 mm long and 24 mm wide. Its ground-colour is greenish yellow dorsally and includes numerous thin white lines, faintly visible under magnification, which curve towards the median line where they terminate. Posterior to the intestinal trunk, the lines are not interrupted in median line and curve from one side of body to other, as shown in A broad dark marginal band around body contains three whitish lines, except in the tentacular region where the band is wide and bears up to six white lines. These lines seldom link up with one another. Ventral surface of body whitish, with a plain brown narrow marginal band. Margin tentacles deep brown and much folded, thus obscuring the disposition of tentacular eyes; about 60 cerebral eyes in a bluntly conical group (). Pharynx with about 10 pairs of lateral folds and relatively more elongate than is usual in Pseudoceros; intestinal trunk extends to near posterior region of body; it is without distinct lateral limbs, but gives off on either side a close network of narrow branches. The epidermis over the intestinal trunk is a little darker than the remainder of
Size: 1831px × 1365px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollection, bookpublisherlondonbutterworths
