SCHIZOPODA. 
21 
Lat. 57° 25' 30" S., long. 151° 45' E., 21. 11. 01, numerous Euphausian 
Metanauplii and Calyptopis larvae, and two Furcilias. 
The Metanauplii and Calyptopis larvae 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 larvae a small spine on the lateral margins of the carapace 
is clearly present. The apex of the telson is very slightly emarginate. The largest 
Calyptopis larva measures 4 mm. in length. 
Lat. 56° 31' S., long. 156° 19' 30" E., 22. 11. 01, seventeen Calyptopis and fifty 
Furcilia larvae. 
The Calyptopis larvae belong to the same species as in the preceding lot. 
The Furcilia larvae 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 larvae 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° l' S., long. 170° 49'E., 27. 12. 01, numerous Metanauplii, Calyptopis, 
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 Furcilia larva, 5 mm., 
apparently the same species as the following larvae. 
Lat. 63° 4' 24" S., long. 175° 47' 57" E., 1. 1. 02 ; numerous Furcilia larvae 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 Metanauplii and Calyptopis larvae, the 
largest of which measured 2 mm. 
Lat. 70° 29' 27" S., long. 168° 51' 46" E., 26. 2. 04, one late Cyrtopia larva, 
9 mm. in length, which, from its size, is probably Euphausia superha. 
Lat. 49° 40' S., long. 112° 18' 30" W., 12. 6. 04; forty-eight larvae, from 
Calyptopis stage to post-larval form, measuring 5 mm., and probably the larvae of 
Thysanoessa macrura. 
Order MYSIDACEA. 
Family PETALOPHTHALMIDiE, Czerniavsky. 
Petaloplithalmidae, Czerniavsky, 1882. 
Petaloplithalmidae, Holt and Tattersall, 1906 (2). 
When defining this family Holt and Tattersall, 1906 (2), overlooked the fact that 
it had been established and defined, albeit rather incompletely, by Czerniavsky (1882) 
a quarter of a century previously. Czerniavsky, however, had no specimens of any of 
G 
VOL. IV. 
