Dr. A. Philippl on the genus Serpula. 161 



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

 standing the great mistakes which so frequently occur in Risso^s 

 descriptions^ we are inchned to doubt the identity.] — Sabella 

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



10. PSYGMOBRANCHUS, Ph. 



1. Ps. protensus, Gra., testa tereti, Isevi, protensa, elongata, parura 

 versus finem attenuata. Diam. 2^"". 



Animal flavescens ; branchiarum fibs utrinque ultra 40, albis rubro 

 annulatis ; membrana lateral! lutea, macubs septem rubris. 



Serptila protensa. Gm. p. -3744 ; Rumpb. 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 fiUformi, glabra, varie flexa. Diam. ^ 



Animal paUide aurantiacum, branchiarum coccinearum fills utrinque 



quatuor. 

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



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

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



Aniynal aurantiacum ; branchiarum albarum filis utrinque tribus. 

 Serpula intricata, L,, ed. 12. p. 126.5 ; Gm. p. 3741. Very common. 



J am in doubt about the following species^ having only seen a 

 single specimen. 

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



duobus longitudinalibus, approximatis bipartite. Diam. \"" . 

 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 obsen^ed, 

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



Observation. — In the work ' 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, h. 

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



authorities quoted, Vermetus triquetra. Born. 



plicaria. Lam. 



infundihulum, Gm. 



vermicularis, L. 



