The Canadian oyster : its development, environment and culture . ?? y^Jr rig 1 f^ h pd ,: : ^ so > ?1 CX^ ^ r< 3 ^^^^. -- /- r ??-J ?-?. • -S /5 ? r - vL be ^0. ^2 \^ ^4 -^ Sections of Larvae and Spat KEY TO PLATE VI Figs. 1-9. .Sections through full-grown oyster larva-: 1-8, transverse;9, median sagittal. All the transverse sections are looked at from behind,so that dorsal is above and left is on the observers left. Their positionshould he located on fig. 9 (or by comparison with PI. V, figs. 30, 32).Easily recognizable parts are generally indicated where they first occurand sometimes n
The Canadian oyster : its development, environment and culture . ?? y^Jr rig 1 f^ h pd ,: : ^ so > ?1 CX^ ^ r< 3 ^^^^. -- /- r ??-J ?-?. • -S /5 ? r - vL be ^0. ^2 \^ ^4 -^ Sections of Larvae and Spat KEY TO PLATE VI Figs. 1-9. .Sections through full-grown oyster larva-: 1-8, transverse;9, median sagittal. All the transverse sections are looked at from behind,so that dorsal is above and left is on the observers left. Their positionshould he located on fig. 9 (or by comparison with PI. V, figs. 30, 32).Easily recognizable parts are generally indicated where they first occurand sometimes not afterwards. Fig. 1. Section across the anterior end (6th of a series of 32 sections):ad, anterior adductor muscle; v, velum; m, mouth; s, shell; mn, borderof mantle. Fig. 2. Second section behind the preceding in the same series: /, tipof foot. Fig. 3. Section of another series (slanting downwards and forwards):st, stomach; oe, oesophagus; I, liver; ?io, supra-cesophageal nerve com-missure; e, pigmentary eye-spot; p, rudiment of palps; v, velum. (Abovethe velum on a level with the eye-spot is a crumpled layer of chitin extend-ing crosswise; above the eye, n
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectoysterc, bookyear1913
