2 Tiof. MTntosli's ^'o!esfrom the 



procured on both shores of Ireland, a form in which the 

 luad has a rounded median lobe projecting in front, supported 

 by two lateral (pcristomial) lobes. Two or four e3'es occur 

 at the posterior border, a short median tentacle on the pro- 

 stoniiuui, and a median lidge ends posteriorly in a sliort 

 process. The body is like that of a typical Spio, is about 

 3 cm. long and 1-2 mm. broad, with 85 to 90 segments 

 (Mesnil), ending in a dorsal anus with four foliaceous 

 cirri. The colour is of a salmon-tint, with red lines from 

 the blood-vessels, and dark brown pigment in transverse 

 rows on the segments. The first foot bears a ventral 

 tuft of finely tapered bristles with very narrow wings, 

 and a large branchia which overlaps that of the opposite 

 side. At the tenth foot (PI. I. fig. 6) the ventral 

 lamella is elongated vertically, its upper margin being 

 deepest, and separated by a narrow cleft from t!ie dorsal 

 lamella, which fuses with the edge of the branchia. The 

 bristles are typical. Winged hooks appear on the eleventh 

 foot, and they have a bold curve at the junction of shaft 

 and neck, then diminish upward to the main fang, Mhich is 

 long, sharp, and comes off at more than a right angle with 

 the neck. A single spike occurs on the crown above it. 



In the thirty-first" Notes ^Mn the 'Annals'* for February 

 1909, some remarks were made on "a form appaiently 

 falling under the Nerinides of JNIesnil,'' from the ' Porcu- 

 pine ' Expedition of 1870, and which had long l)een named 

 ScolecoltjAs, H. This form, as Mr. Southern f truly says, 

 is not a Nerinides, and differs from two species of Nerinides 

 Avhich he has been fortunate in securing on the West Coast 

 of Ireland, viz. Nerinides longirostris^ De Quatrefages %, as 

 more cleaily desciibed by De St. Joseph §, and Nerii.ides 

 tridenlata, Southern. The former, which reaches 10 cm. in 

 length and 8 mm. in breadth, at first sight mimics Nerine 

 foliusa, Sars, yet differs in having a branchia on the first 

 segment besides a dorsal and a ventral setigerous process 

 Avith bristles. The head is acutely pointed and has a median 

 ridge or keel, running back to the third segment^ with four 

 eyes in a scjuare; whilst the peri.-toniial segment bears a 

 pair of short golden-yellow tentacles, each with a ciliated 

 groove. Hooks with a single spike above the main fang 

 a|)pearin the ventral division between the thirty-third or forty- 

 fifth segment, and are accompanied by a few wingless bristles. 



• Ser. 8, vol. iii. p. 175. 



+ Proc. R. Irish Acad. vol. xxxi. no. 47, p. 97. I am indebted to 

 Mr. Soutliem tor kindly foiwardiug examples of his new and rare forms, 

 t Annel. i. p. 444, and previously iu 1S43 (Mag. Zool.). 

 § Ann. Sc. nat. 7« ser. t. xvii. p. 74, pi. iv. tig.«. 80-90. 



