Gatty Marine Laboratory^ St. Andrews. 37 



Catalogue of the British Museum, it wouhl seem that 

 Dr. Johnstou's exami)le oiGlycera /«//?> reseml)lcd (in 1872) 

 G. dubia in the collection, that is Glycera siphonostomn, Delie 

 Chiaje (G. tesseUata, Grnbe), and had apparently lost its 

 teeth. Two species are thus accounted for. An example of 

 the same species (also labelled G. BouxU) from South Devon 

 hears out the foregoing diagnosis ; yet another specimen 

 labelled 0. Rouxli seems to be Glycera lapidum. Ghjcera 

 niyripes appears to be a variety of Glycera siphonostoma 

 procured in Scotland by Lieut. Tlioraas, R.N. Few examples 

 of Glycera lapidum occur in Dr. Johustou^s series, and one 

 or two are in bottles wiLh other species, such as Glycera 

 alba. One example, however, labelled by Dr. Johnston 

 " Glycera capitata," comes from Holy Island. Another is 

 " Aereis surcx," of Montagu, from South Devon (Mus. 

 Leach). The additions made to the Catalogue by Dr. Baird 

 consist of the epitokous form of Glycera capitata (" Glycera 

 setosa") and Glycera alba, O. F. M. It is, however, clear 

 that the former is the epitokous condition of Glycera lapidum, 

 a form closely approaclnng Glycera capitata and for a long 

 time confounded Avith it. 



The first form, Goniada macidata, Q^rst., is abundant in 

 the stomachs of haddock in St. Andrews Bay, and ranges 

 from Shetland to the south in fairly deep water. It 

 occurs also in sand at low water. The elongated and tapered 

 snout of eight segments, its pinkish or scarlet colour, greenish 

 eggs, and active habits are conspicuous. The broad region 

 of the proboscis in extrusion is densely papillose and armed 

 on each side by a row of about ten dark brown V-shaped 

 denticles. Distally are the circle of papillae and the denticles 

 of the region. The first foot has two somewhat elongated 

 lower lobes (the inferior being the cirrus), with bristles between 

 and above, and superiorly a flattened process representing 

 the upper division. The tenth foot is characteristically trifid, 

 the setigerous region having a single spine and a tuft of 

 bristles superiorly and inferiorly. At the 50th foot the dorsal 

 lobe (cirrus) is elongated and tapered, with the dorsal bristles 

 and their spine. The inferior division has a rounded seti- 

 gerous region with its spine and two long papilhe projecting 

 externally. A ventral cirrus occurs inferiorly. The foot 

 remains of similar structure till near the tip of the tail (wath 

 its two cirri), the lobes and the bristles increasing in length. 

 The bristles of the ventral lobe considerably exceed tlie others, 

 their very long terminal pieces projecting far outward. 



In glancing at examples of Goniada from various parts of 

 the world two types of foot are apparent. The first conforms 



