MARINE BIOLOGICAL STATION AT PORT ERIN. 117 
Candacia pectinata, few. 
Zoee, many. 
Oikopleura, few. 
A few notes on the prevalent forms in the different 
months will now be given. 
In the only tow-netting taken in January, the most 
notable forms were a Radiolarian (Acanthometra), of which 
there were many; the Hydromedusa Hybocodon prolifer, 
which, curiously enough, has not again been noted during 
the year; a Holothurian larva (fig. 1, Pl. VII.), and the 
three stages of the development of an Asterid larva, 
figured on the same plate (figs. 4 to 6). 
There were also several trochophore and _ post-larval 
stages of Polycheta, and single specimens of Tomopteris 
onisciformis and Autolytus cornutus. Sagitta, recorded 
in the Eleventh Annual Report as abundant in January, 
was not seen. There were a few Molluscan veligers and 
several specimens of Ovkoplewra. Lastly, a single speci- 
men of the curious larva represented on Pl. VI. (fig. 5), 
was seen, and kept under observation for some time. 
In the February tow-nettings the Acanthometrids were 
well represented, and the Hydromeduse Obelia and the first 
stage, with four tentacles, of Phialidium temporarium, 
appeared. Bipinnaria and Auricularia larve were in force, 
and a few Echinoid plutei, of two species, were noted. 
Sagitia, the larva of a Bopyrid, Nauplii, and Zoew appeared 
in increasing numbers as the end of the month drew near. 
Fish eggs appeared in small numbers on February 3rd, 
and fish larvee, of two species, were taken on the 23rd. 
A tow-netting, taken on March 13th, showed the Radio- 
larians to be present in diminishing numbers. Several 
very young specimens of Hormiphora appeared, and many 
Echinoid plutei, of three species, along with small numbers 
of Auricularia and Bipinnaria larve, and segmenting eggs 
