biramose

The biramose maxillipedes appear to assist but slightly in locomotion.

Facts and Arguments for Darwin Fritz Muller 1859

The five new pairs of feet are biramose, the inner branch short and simple, the outer one longer, annulated at the end, furnished with long setae, and kept, as in Mysis, in constant whirling motion.

Facts and Arguments for Darwin Fritz Muller 1859

Then feet appear upon four segments of the middle-body, and these are biramose on the three anterior segments, and simple, the inner branch being deficient, on the fourth segment.

Facts and Arguments for Darwin Fritz Muller 1859

The maxillipedes, of which the third pair is often still wanting, are not yet brought into the service of the mouth, but appear in the form of biramose natatory feet.

Facts and Arguments for Darwin Fritz Muller 1859

The youngest larva of the Schizopod genus Euphausia observed by Claus, stands very near the youngest Zoea of our Prawns; but whilst its anterior antennae are already biramose, and it therefore appears to be more advanced, it still wants the middle maxillipedes.

Facts and Arguments for Darwin Fritz Muller 1859

These quit the egg with an unsegmented ovate body, a median frontal eye, and three pairs of natatory feet, of which the anterior are simple, and the other two biramose -- in fact, in the larval form, so common among the lower

Facts and Arguments for Darwin Fritz Muller 1859

On the abdomen six pairs of powerful biramose natatory feet with long setae have been formed beneath the Nauplius-skin, and behind these are two short, setigerous caudal appendages (Figure 58).

Facts and Arguments for Darwin Fritz Muller 1859

The corresponding body-segments are already well developed, an unpaired eye is still present, the anterior antennae are already biramose, whilst the flagellum is wanting in the posterior, and the mandibles are destitute of palpi; the four anterior abdominal segments bear biramose natatory feet, without branchiae; the fifth abdominal segment has no appendages, and this is also the case with the tail, which still appears as a simple lamina, fringed on the hinder margin with numerous short teeth.

Facts and Arguments for Darwin Fritz Muller 1859