scnizoroDA. 21 



Lat. 57 25' 30" S., long. 151 45' K, 21. 11. 01, numerous Euphausian 

 Metanauplii and Calyptopis larvse, and two Furcilias. 



The MetanaupUi and Calyptopis larvse are characterised by the presence of a 

 short blunt posterior median spine on the carapace. The front part of the latter, which 

 forms the hood over the eyes, appears to have its margin quite smooth. In the 

 majority of the Calyptopis larvse a small spine on the lateral margins of the carapa. e 

 is clearly present. The apex of the telsou is very slightly emargiuate. The largest 

 Calyptopis larva measures 4 mm. in length. 



Lat. 5G 31' S., long. 156 19' 30" E., 22. 11. 01, seventeen C///y/rf,y,/.s and fifty 

 Furcilia larva). 



The Calyptopis larva 1 belong to the same species as in the preceding lot. 



The Furcilia larva; measure from 2'5 to 4 mm. They present no features of 

 note, but from their size they probably belong to a smaller species of adult than the 

 Calyptopis larvse which accompany them. All present a lateral spine on the carapace, 

 and the rostrum is in the form of an acutely produced triangular plate. 



Lat. 54 1' S., long. 170 49' E., 27. 12. 01, numerous JfrfniHiujJii, C<ih//>fopis, 

 and Furcilia, larvae. 



All these are apparently stages of one species. The largest Calyptopis larva 

 measures 3 mm. and is without a posterior median spine on the carapace. The 

 anterior margin of the hood is smooth ; there is a lateral spine on the carapace, and the 

 apex of the telson is very lightly convex. The largest Furcilia measures 4 5 mm. 



Lat. 61 13' 30" S., long. 173 33' E., 31. 12. 01, one Furcilm larva, 5 mm., 

 apparently the same species as the following larvse. 



Lat. 63 4' 24" S., long. 175 47' 57" E., 1. 1. 02 ; numerous Furcilia larvse from 

 4 mm. to 5*25 mm. in length, and apparently the same species as the preceding larva. 



Wood Bay, 22. 2. 04, numerous small Mctmnniplii and ('</////. /<y//.v larva;, the 

 largest of which measured 2 mm. 



Lat, 70 29' 27" S., long. 168 51' 46" E., 2G. 2. 04, one late Cyrtf>ia larva. 

 9 mm. in length, which, from its size, is probably Euphnuxi<i *////-///. 



Lat. 49 40' S., long. 112 18' 30" W., 12. G. 04; forty-eight larva;, from 

 CoJyptopis stage to post-larval form, measuring 5 mm., and probably the larva 1 of 

 Thysa noiissa ma cm ru. 



ORDER MYSIDACEA. 

 FAMILY PETALOPHTHALMID.E, Czerniavsky. 



J'rliihijiht/HiliiiiJse, Czerniavsky, 18S2. 

 PetalofhthalmiJae, Holt and Tattersall, 190C (2). 



When defining this family Holt and Tattersall, 1'JOG (2), overlooked the fact that 

 it had been established and defined, albeit rather incompletely, by Czerniavsky (1882) 

 a i|uarter of a century previously. Czerniavsky, however, had n<> specimens of any of 



VOL. IV. ( ' 



