Kbamek. — Pelagic Copepods and Cladoceres of Auckland. 217 



I. COPEPODA. 

 1. Fam. Cadanid.t:. 



1. Paracalanus parvus, Claus. 



Is known from several places in the Pacific, but has not 

 been previously obtained from the immediate neighbourhood 

 of New Zealand. In the Waitemata Harbour a few specimens 

 only have been found, but it is very frequent in the Hauraki 

 Gulf, especially in the Toimo Bay, where it was of a dark-red 

 colour. 



2. Clausocalanus arcuicornis, Dana. 



Was found by Dana in lat. 32° S. and long. 178° E., 

 near the Kermadec Islands, and by Giesbrecht in the more 

 northern parts of the Pacific, in the depth of 4,000m. 

 (13,000ft.). In the Hauraki Gulf a few female specimens 

 were found near the Island of Motuhurakia. The proportions 

 of the segments of the first antenna are nearly accurately the 

 same as Giesbrecht mentions. The teeth of the inner margin 

 of the basalia 2 of the pes n. and in. are conspicuous. Total 

 length, l-25rnm. 



2. Fam. Centropagid^:. 



3. Centropages typicus, Kroyer, var. aucklandicus. Plate 

 XV., figs. 1-5. 



The species has not been previously found in the Southern 

 Hemisphere, but the nearly-related C. brachiatus, Dana, is 

 recorded from the Cape of Good Hope and from the west coast 

 of South America. Found in the Hauraki Gulf, but not 

 generally distributed ( $ and §). 



The hooks of the fifth segment of the thorax (fig. 5) like 

 spines ; anal segment of the male not reduced, nearly as long as 

 the preceding. Seta externa of the furca $ , which is twice as 

 long as broad, not near the margin of the end. 



Genital segment (1) of the female not armed with four 

 setse ; the following segment (2) a little longer than this, and 

 without a knob. 



Fifteenth joint of the first antenna 3 also with a big spine 

 similarly to the sixteenth joint (like C. brachiatus) . 



Fifth foot 3 (fig. 1). Inner branch of the hand (tongs) not 

 so strong and short, but as long and thin as the outer. 



Fifth foot $ (fig. 2). Thorn inside of the second joint of 

 the ramus externus (B.e.) not longer than the joint itself (as 

 long), and not standing off and not so strong. 



Fourth foot. Spine outside of the second joint of the ramus 

 externus dexter just as in C. ti/picus, Kroyer, but the end is 

 blunt. 



