Dr. A. Philippi on the genus Serpula. 161 



ments, that notwithstanding the authority of Cuvier, and notwith- 

 standing the great mistakes which so frequently occur in Basso's 

 descriptions, we are inclined to doubt the identity.] — Sabella 

 Protula, Cuv. Regne Anim., ed. 2. iii. p. 192. 



10. PsYGMOBRANCHUS, Ph. 



1. Ps. protensus, Gm., testa tereti, laevi, protensa, elongata, parum 

 versus finem attenuata. Diam. 2 J"". 



Animal flavescens ; branchiarum fills utrinque ultra 40, albis rubro 

 annulatis ; membrana laterali lutea, maculis septem rubris. 



Serpula protensa, Gm. p. 3744; Rumph. t. 41. f . 3 ; Martini, 1. 

 fig. 12 A. 

 Although Rumphius's figure represents a species from Am- 



boina, I cannot detect in the figure any difference between it and 



my species. 



2. Ps. cinereus, Forsk., testa filiformi, glabra, varie flexa. Diam. 4 



i mi 

 — * * 

 Animal pallide aurantiacum, branchiarum coccinearum filis utrinque 



quatuor. 

 Serpula cinerea, Forsk. fn. arab. p. 128 ; Gm. p. 3747. 



3. Ps. intricatus, L., testa filiformi, flexuosa, tereti, scabra, medio 

 subcarinata, valde rugosa. Diam. ^ — J"". 



Animal aurantiacum ; branchiarum albarum filis utrinque tribus. 

 Serpula intricata, L., ed. 12. p. 1265 ; Gm. p. 3741. Very common. 

 I am in doubt about the following species, having only seen a 

 single specimen. 

 Apomatus ampulliferus, Ph., testa transverse rugata, dorso sulcis 



duobus longitudinalibus, approximatis bipartite Diam. 



Uin 



2 



Animal operculo nullo ; branchiis flavidis, filis utrinque 7, punctis 

 purpureis ornatis ; filo uno in vesiculam sphcericam terminate 

 I should have looked upon this curious formation without he- 

 sitation as a monstrosity, if my friend Scacchi had not observed, 

 a few years previously, the animal likewise with the vesicle. 



Observation. — In the work f Actinien, Echinodermen und Wiir- 

 mer des Adriatischen und Mittelmeeres/ by Dr. Grube, there is 

 represented in fig. 11 the bristle of Serpula latisetosa. This 

 name does not occur at all in the text p. 90, but there is a Sa- 

 bella latisetosa ; and in my copy, pages 57 to 64 are wanting. 

 According to the catalogue, p. 90, the author collected the fol- 

 lowing species : — 

 Serpula intricata, L. 

 — glomerata, L. The Linnsean species is, according to the 



authorities quoted, Vermetus triquetra, Born. 



plicaria, Lam. 



infundibulum, Gm. 



— — vermicularis, L. 



