Peraeopods. All less spinous and without sign of lily-shaped spines as in male. Fifth: Like Pr. 5 in T. chathamensis, female.

Localities. Kaiapoi Beach, near mouth of Waimakariri, coll. C. Chilton, 1¾/1903; Ross Beach, Westland (Tray 36, Chilton Colection).

Types. Slides C.13 (male); C.15 (female), Chilton Collection.

Remarks. This species is based on specimens from Ross Beach in Westland and from Kaiapoi Beach, near Christchurch, which Chilton considered intermediate in character between the two forms of T. telluris which he described and which I consider separate species. Here again, the apparent similarity of facies proves to be deceptive when the specimens are examined in detail. The carpus of the male first gnathopod characteristically lacks the pellucid process found in T. telluris and T. chathamensis. This does not appear to change markedly with age, the most mature specimens I have being without the lobe, whilst immature T. chathemensis show a well-developed lobe. The male second gnathopod and 5th peraeopod carpus, as figured, appear to be mature forms. The epimcral plates are not spined anteriorly or ventrally, and the pleopods are quite characteristic and constant from both South Island localities. The uropods are distinctive. And on the 3rd to 5th male peraeopods there are peculiar spines of a type which I have not elsewhere encountered in the amphipods. These lily-shaped spines do not appear to be present in the female but are, I believe, of specific value.

Talorchestia dentata (Filhol), 1885. (Figs. 149–170).

Orchestia dentata Filhol, 1885: 462, Pl. 53, Fig. 1.

Orchestia tucurauna, Chilton 1919: 376–386, Text-figs. 1–14 non Muller.