290 Prof. M'Intosli's Notes from the 



if 



77. Gasparrinia murorum, vav. sub/ulvn, Mer. Tauria, prope Sin- 



feropoliii (Rossia). 



78. corticicola (Nyl.), Mer. riiiiita lignicola. AstracLan 



(Rossia). 



79. tnurorum, var. miniat/i (Iloftni.\ 'Hi. Fr. Gnllia. 



80. , var. hainiKjarfyieri (Zahlbr. ), ^^er. Auslrin. 



81. tiurnntui, var. thulliitcvla (Wedd.), Mer. Concariieau 



(Gallia). 



82. tegulari» (Ehrh.), Mer.*. Agde, Ilerault (Gallia). 



83. aiirantia, var. hrevilohata, ibrma illohata, Mer. Collioure, 



Pyreii.-Orient. (Gnllia). 



84. tenuata (Nyl.), Mer. Beaulieu, Alp. ISrarit. (Gallia). 



85. pusilla (Mass.), Tornab. *rauri9, prope Jalta (Rossia). 



86. aurantia (Pers.), Syd. Tauria, (Jastel (Rossia). 



87. , forma centrifiic/a (Mass.), Mer. Capri (Italia). 



88. , forma mesoleuca (Mass.), Mer.f. Beaulieu, Alp. 



Marit. (Gallia). 

 89. , var. hrevilohata (Nyl.), Mer. Collioure, Pyren.- 



Orient. (Gallia). 



XXVII. — Notes from the Gatty Marine Laboratory^ St. An- 

 drews.— No. XLIII. By Prof. M'Intosh, M.D., LL.D., 

 D.Sc, F.R.S., &e. 



Recent Additions to the British Marine Polychceta. 



Since the publication of the earlier parts of the 'Mono- 

 graph of the British Marine Polychsets ' was commenced 

 (nearly fifty years ago) many additions have been made, and 

 Seme of these have already been described in the 'Annals 

 and Magazine of Natural History.' Others will be indicated 

 in the following notes. 



Of the Euphrosynidae, a post-larval form was procured 

 by Mr. Chad wick in the surface tow-net off Port Erin in 

 December 1905. 



Anteriorly, in the microscopic preparation, the head con- 

 sists of a somewhat shield-shaped lobe, broad and slightly 

 dimpled in front, narrower behind, and with a more deeply 

 stained clavate band along each side, at the anterior end of 

 which is a minute dark eye. This shield-shaped region is 

 minutely streaked and dotted, apparently from the minute 



* The former name of no. 82, Oasparrinia lohulata (Sommf.), had 

 to be changed tor this new one. 



t In addition to this form, there exists undoubtedly a forma centro- 

 leuca (Mass.), Mer., which I have observed in Italy, distinct from the 

 forma mesolezica by the absence of concentric zones of yellow and white 

 coloration on the thallus. 



