170 FAUNISTIC NOTES. 



abundant. Ohelia Incifcra was exceedingly plentiful during the whole 

 of September, 1893, but in 1895, though a few specimens were taken 

 daily at the beginning of the month, the great crowd did not appear 

 until September 14th, then in the shallow water of Whitsand Bay, but 

 soon swarmed everywhere, along with Muffjicea and Doliolum. 



Mwjgiwa atlantica, Cunningham. — Cunningham (1892) has given 

 a description of this species. He first obtained specimens near the 

 Eddystone on September 12th, 1891, "and afterwards it was obtained 

 in great abundance close to the Plymouth Breakwater, and even inside 

 the Sound. It was brought in numbers to the Laboratory almost every 

 day up to about the middle of October, but after the end of that 

 month it was not seen again." 



Cunningham (1892), p. 398, gives an earlier history of this siphono- 

 phore, and also states that in 1892 it was very abundant at I'lymouth, 

 about the middle of September, but decreased considerably towards the 

 end of the month. 



In 1893, Muggicra was present during the whole of September, and 

 during the early part of the month fairly abundant. In 1895 it 

 was exceedingly abundant. * 



Beroe. — A single specimen taken on 19th September, 1895, about 

 3 mm. in length. 



Echinoderm larvm. — In 1893, Plutei were abundant during the early 

 part of September, but very scarce towards the end. In 1895 several 

 kinds were seen, some very abundant at the end of the month. 

 The Bipinnariffi, described by Garstang (1894), were first taken at 

 Plymouth in 1893, during August, and apparently disappeared before 

 my arrival, as I saw none during September. But, in 1895, a few 

 specimens were occasionally taken. 



Pilidium. — I did not see any larva3 during September, 1893, but 

 frequently saw them in 1895. Fairly abundant on September 7th and 

 19th. 



Terchella. — The larval form in its tube was always present in the tow- 

 net during September, 1893 ; a sudden increase occurred on September 

 23rd. In 1895, none seen until September 13th; after this date a few 

 were generally present in the tow-net, but they were never abundant. 



Clicetoptcrus. — In 1893, one or two larvjo were usually taken every day. 

 In 1895, a few were seen at the end of August, but none during 

 September. 



Polynoe. — In 1893 a few of the early larval stages were taken about 

 the middle of September. In 1895 a few were occasionally seen, but 

 scarce. 



* Cf. HoDtiSON, infra, p. 174. It reinaiued this year (1895) uutil the middle of 

 December. — Ed. 



