oniscoidea. 735 





New Zealand, Bay of Islands ; abundant on beach of Parua Har- 

 bour, and found in the sand by turning it over for a depth of a few- 

 inches ; often seen running on the beach. 



Length, 6-10 lines. Colour, variegated ; irregularly spotted with 

 bright yellow, red, brownish red, and jet black, producing a beautiful 

 appearance ; antennae, colourless, or nearly so. Body quite evenly 

 elliptical, and surface indistinctly a little spinulous. Posterior angles 

 of thorax acute. Last abdominal segment subtriangular, with apex 

 truncate, not more than half the width of the preceding. Caudal 

 stylets have the branches straight ; the base fills up the interval be- 

 tween the last two abdominal segments. Legs have second, third, 

 fourth, and fifth joints subequal. Antennas have last three joints 

 together (corresponding to a flagellum) but little longer than the pre- 

 ceding one, and this a little longer than the next preceding ; the first 

 three about equal in length to last three. 



Plate 48, fig. 6, represents a smaller animal, fjund in and upon the 

 same beach, which we suspect to be young of the above. Still, the 

 differences are so great, that we are not sure that it may not be a 

 distinct species. The general form was that of an adult. The reasons 

 for supposing it young, are the resemblance between the two in the 

 outer maxillipeds, a general similarity in colouring, and their occur- 

 rence together in the same locality. All the specimens found were of 

 the same size, being about two lines long. In the caudal extremity, 

 the differences are very considerable. The last segment of the abdo- 

 men does not project at all between the stylets, so as to separate the 

 bases of the stylets ; on the contrary, these stylets are close alongside 

 of one another from their bases ; moreover, they project but very 

 little beyond the outline of the abdomen, the large branch being very 

 short and obtuse, and not long and subulate, as in the adult ornatus; 

 and the smaller branch quite slender, and arising from a point far 

 anterior to the base of the larger branch. The head is short trans- 

 verse. The eyes are rather large and prominent. The antennae are 

 short and curve outward ; they consist of ^lyq basal joints, and a ter- 

 minal flagellum, which is indistinctly five or six-jointed ; the surface 

 is minutely spinulous. The last thoracic segment is not shorter than 

 the preceding, and the last pair of thoracic legs is also of the usual 

 size and character. The abdomen fills the concavity below the last 



