Body length was measured from the anterior part of the head capsule to the posterior part of the uropod
by using an ocular micrometer on a LEICA MZ 125 stereo-microscope.
kerathrus individuals were molt staged by microscopic examinations of the uropod
setae according to .
Such low recapture percentages likely were affected by tag shedding, death of tagged individuals by mechanical injury, and regeneration of the uropod
(Wang et al.
5x longer than the basis width in the holotype; and uropod
3 outer ramus 2.
Characters such as uropod
articulation and relative pereonite length have been shown to vary considerably according to developmental stage (Larwood 1940; Masunari 1983; Larsen 2005; Bamber 2010), in this genus as well as amongst other tanaids (Larwood 1954; Bird 2008).
is distally tapering, and its flagellum is about the same size as the uropodal ramus.
Into each trap was placed a sample of approximately 40 male rock lobsters, each of which had been measured (CL) and marked by cutting a notch in its uropod
Exopod of uropod
as long as telson, with two spines on posterior half of outer margin; telson with 45 pairs of dorsolateral spines and one pair of distal spines (Fig.
These areas included the tips of each claw (n = 2); the inside of each claw (n = 2); claws (n = 2); claw "shoulders" (n = 2); rostrum (n = 1); around each eye (n = 2); left, center, and right carapace (n = 3); each abdominal segment (n = 6); and each tail uropod
(n = 5).
One week before the start of the experiment, a standard v-notch tool (used by North Cape v-notchers in the field) was used to mark each lobster in the experimental group with a v-notch in the right uropod
next to the telson.
The molt stage was determined by examining the uropod
in which partial retraction of the epidermis could be observed (Peebles 1977).
1), four measurements were taken with a pair of dividers and a ruler calibrated to 1 mm: antennal length, uropod
length, body length (excluding antennae and uropods
), and total specimen length (including antennae and uropods