rostral

[ ros-truhl ]

Phonetic (Standard)IPA

adjective

rostral

/ ˈrɒstrəl /

Origin of rostral¹

1700–10; < Late Latin rōstrālis, equivalent to Latin rōstr ( um ) rostrum + -ālis -al ¹

The adductor ridge is strongly prominent, is curved towards the rostral angle, and runs down nearly to the basal margin.

Scutum, with crests for the rostral and lateral depressor muscles; tergum, with the end of spur rounded.

On the internal surface, near to the rostral angle, a rather large purple spot of corium adhered to the valve.

There is no little tooth near the rostral angle, and the basi-scutal corner is not hollowed out.

These valves stand almost at the rostral end of the orifice, instead of on each side of it.

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