. Transactions and proceedings of the New Zealand Institute . ~ 7 PARAMEPHP OPS SETOSUS. TRANS. MZ. INSTITUTE, VOUKPLffi. PAPANEPPROPS SETOSUS. Chilton.—On Astacus fluviatilis and Paranephrops setosus. 161 ossicles {pG) have much the same shape and position as in Astacus. Thelateral teeth (It) are large and reddish-yellow in colour. Anteriorly theteeth are large and distinct and there is one large tooth placed on one sideof the row ; posteriorly the teeth decrease greatly in size, but there are twoor three rows so that they form an efficient grinding apparatus. Beneaththe
. Transactions and proceedings of the New Zealand Institute . ~ 7 PARAMEPHP OPS SETOSUS. TRANS. MZ. INSTITUTE, VOUKPLffi. PAPANEPPROPS SETOSUS. Chilton.—On Astacus fluviatilis and Paranephrops setosus. 161 ossicles {pG) have much the same shape and position as in Astacus. Thelateral teeth (It) are large and reddish-yellow in colour. Anteriorly theteeth are large and distinct and there is one large tooth placed on one sideof the row ; posteriorly the teeth decrease greatly in size, but there are twoor three rows so that they form an efficient grinding apparatus. Beneaththe lateral teeth on each side there is a small, single, sharp tooth at theend of a long, thin, calcified bar. In a side view of the stomach (fig. 6) thistooth is seen to be also supported by a broad plate, the inner surface ofwhich is thickly covered with short, stiff, plumose setse. On the raisededge of this plate, projecting from either side into the interior of thestomach, there is a row of setas similar to the others except in stretch across and meet in the centre and appear to be for thepurpose of stoppin
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Keywords: ., bookcentury1800, bookdecade, booksubjectbirds, booksubjectscience
