FAUNISTIC NOTES. 175 



divides honours with September. This year, however (1895), the 

 weather was distinctly prejudicial to good work outside the Breakwater, 

 during the earlier part of the month. 



Of the Crustacea, Podon intermedius (Lillj), and Hvadne Nordmanni 

 (Lowen), were constantly present, and a large proportion of the females 

 carried ova. The Copepods CetocMlus septentrionalis (Goodsir), Ctausia 

 elongata (Boeck), Dias lonyiremis (Lillj), Tcmora longicornis (Miiller), 

 Centropages typicus (Kroyer), were invariably taken, the first-named in 

 somewhat limited numbers, the remainder in more or less profusion. 

 Anomalocera Patersoni (Templeton) only occurred once, on the 24th, 

 when two individuals were taken. This conspicuous species is stated 

 by Bourne (3) to be abundant in the late summer and autumn, though 

 Bles (1) and Garstang (9) do not mention it. 



Oithona spinirostris (Glaus), recorded by Bourne (3) as an early spring 

 species, was abundant all through the month, and, on the 23rd, females 

 bearing ovisacs were taken. Coryceus cmglicus (Lubbock), was also taken, 

 though not previously recorded before September (Bles, 1). Bourne (3) 

 describes it as occurring from February to May. Nauplii were extremely 

 abundant, more especially those of Cirripedes. The Zocea of Carcinus 

 appeared about the middle of the month, and soon became abundant, 

 with the larvae of various other Decapods. 



Of Ascidians, Oikoplexira dioica (Fol), was frequently present, though 

 by no means abundantly. On the 26th, Doliolum tritonis (Herdman), 

 appeared for the first time. The Ctenophore Hormipliora plumosa, 

 (Agassiz), almost invariably occurred in small numbers. Muygicca 

 atlantica (Cunningham), appeared on the 13th, and from that time 

 forward was constantly present. 



From the middle to the end of the month the tow-nettings were taken 

 well within two miles of the Breakwater, and from the 20th onwards 

 the medusoid forms of Ohelia appeared numerously, but in somewhat 

 fluctuating quantities ; and together with them a few other medusae. 

 Larval forms in abundance made their appearance towards the end of 

 the month. Echinoderms were among the first, with several species of 

 riutei, and a few Bipinnaria. An occasional Tornaria, T. Krohnii, 

 followed by a variable number of Trochos2)hercs, Pilidia, &c., and post- 

 larval stages of numerous Polychtetes. Cyphonmites also appeared in 

 fair numbers. Spadella hipundata occurred somewhat sparingly near 

 the end of the month, and the individuals were of moderate size only. 

 Ceratium was taken very sparingly on three occasions, and Diatoms of 

 the genus Rhizoselcnia were not uncommon. 



September. — The calm and hot weather prevailing almost entirely 

 through this month, if it did not directly increase pelagic life, was 

 decidedly more favourable for its capture. All the Entomostraca 



