218 Transactions. — Zoology. 



There are many slight differences between this variety and 

 the old form ; but it does not seem necessary to form a new 

 species, as the general similarity is great. I have therefore 

 distinguished it as var. aucklandicus. 



4. Temora turbinata, Dana. 



Described by Dana from the Sulu Sea, and by Giesbrecht 

 from Hongkong and Amoy. Is very common in all parts of the 

 harbour and gulf in all states of development, the young having 

 a red wing on each side of the body. 



5. Leuckartia, Claus, sp. (?). 



Only one specimen found in the gulf. Was recognized as 

 a Leuckartia for certain, but, as the species would be a new 

 one, and there is the possibility that the specimen was juvenile, 

 I only notice the presence of this genus for further examina- 

 tions. 



3. Fam. Poxtellid;E. 



6. Labidocera cervi, n. sp. ? . Plate XVI., figs. 6 and 7. 



I only found one specimen, a female, in the Hauraki Gulf. 

 The species is a new one, and belongs to the group of L. 

 orsinii, nerii, and pavo. Length of the thorax, 2'3mm. ; of 

 the abdomen and furca, Jmm. The appearance is like that of 

 L. nerii. (1mm. = ^gin.) 



Head without a crista, but with a long rostrum (as long as 

 the first joint of the first antenna, fig. 6). 



Antenna I. as L. brunesceus (Giesbr., tafel 23, fig. 7). 



Antenna n. as L. kroyeri (Giesbr., tafel 23, fig. 23). 



The ramus interims is shorter, with four long and one short 

 setae on the end. Mandible, maxilla, maxillipeds, like L. 

 wollastoni. 



The last joints of the four swimming-feet are armed as 

 follows : — 



Pes i. Pes ii. Pes in. Pes iv. 

 Ramus externus, i Outside thorns . . 2 3 3 3 



third segment ( Inside set* ..4 5 5 5 



Ramus internus, } c ,. r a a t 



i . [ Set* . . o o s / 



second segment ] 



The most characteristic part is pes v. and the two-seg- 

 mented abdomen. Pes v. (fig. 7) is a little similar to that of 

 L. pavo, but the hooks are stronger, like the horn of a stag 

 of ten antlers. 



The rami externi of the fifth feet of the four species are 

 characterized as follow :— 



On the End. On the Outside Margin. 



L. orsinii . . 1 point. 



L. nerii . . 3 points of middling size. 



L. pavo . . 3 points of middling size. 2 small points. 



L. cervi, n. sp. . . 3 large points. 2 large points. 



