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Zoology Publications from Victoria University of Wellington—Nos. 78, 79 and 80

1.	Supraorbital spines when present without spinules (Fig. 1A).
2.	Pereiopod 5 develops before pereiopods 3 and 4, terminal spine of dactylus extremely long (extends at least beyond eyes) and provided with spinules distally (Figs. IB, C).
3.	Protopod of maxilla with 3 endites only, exopod shorter than endopod in early larvae (Fig. 1H).
4.	Endopod of maxillule small and unsegmented.
5.	Endopod of maxilliped 1 with two or three incomplete segments (as indicated by setation), never with indication of four segments (Figs. ID, E).
6.	Maxillipeds 2-3 and pereiopods raptorial in form, with spiniform serrate and simple setae, dactylus produced into a strong spine (e.g. Figs. IF, G).

**Key to larvae of the New Zealand Alpheidae**¹
A.	Rostrum as long as or longer than antennular peduncle; with supraorbital spines from zoea 2; strong posterolateral spines on abdominal somite 5 from zoea 3; pereiopod 5 not developed until zoea 3 (Fig. 1A)	Betaeopsis aequimanus
	Rostrum short, does not extend beyond eyes; without supraorbital spines or posterolateral abdominal spines in zoeae 1-3; pereiopod 5 developed in zoea 2 (Fig. IB)	B
B.	Endopod of maxilliped 1 very small, with two incomplete segments (as indicated by setation) (Fig. ID)	Alpheus richardsoni
	Endopod of maxilliped 1 with three incomplete segments (as indicated by setation)	Cpage 5
C.	Ischium of maxilliped 3 without spiniform seta (Fig. IF)	Alpheus socialis
	Ischium of maxilliped 3 with spiniform seta (Fig. 1G)	Alpheopsis garricki