The upper latera occur in all the species; in the lower whorl there are either two or three pair of latera, in the former case the infra-median pair being absent.
There are eight valves, of which the scuta, terga, and carina are large; the rostrum and a pair of latera are very small and often rudimentary.
The upper latera (viewed internally) are almost diamond-shaped, owing to the prominence of the basal margin, but this varies considerably in degree.
Latera, three pair; the middle pair apparently corresponds with the upper latera of the other species of the genus.
The latera overlie the carinal half of the terga; I presume that they are homologous with the carinal latera in Scalpellum.
The umbones of these two latera are seated at their basal outer angles, so that the growth of the valves is towards each other and upwards.
The rostrum in the male is of much larger relative size; whilst of the upper laterathere is not a trace, although in the hermaphrodite these valves are larger than the rostrum.
The latera differ considerably in shape in the different species.
Capitulum with 14 reddish valves: carina with the roof flat, bordered on each side by a rounded ridge; basal margin truncated: upper latera twice as long as broad.
Some, however, of the lower latera are of nearly equal size.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "latera" in a variety of sentences. We hope that you will now be able to make sentences using this word.
