402 
The longest species is found in the Mediterranean ; the most pon- 
derous at Port Essington (Australia). 
DESCRIPTIONES SPECIERUM. 
TENAGODUS, Guettard, Mém. 1774, p. 128. 
T. in gyris obliquis contorta, substantia dura leviuscula nitida, 
plerumque sqamifera, striis incrementi simplicibus ; apertura 
postice elongata. Animal et operculum ignota. 
If the figure of the animal of Audouin (Chenu, Ill. et Legons) is 
represented of the natural size, it belongs probably to this genus, as 
Rang asserts the specimen was brought from the East Indies by Dr. 
Busseuil of the frigate ‘Thetis.’ The known species of the follow- 
ing section, Stliquarius, from the East Indies, are all of a compara- 
tively small size. Perhaps it may be the Tenagodus gigas, Lesson, 
brought from the Moluccas by ‘la Coquille’ about the same year. I 
suppose that Rumphius describes the operculum in the following 
passage: ‘‘Solen anguinus van binnen met diergeylk een slymerig 
Deer, en een getand Mytertye voor in den mond.” I suppose that 
the cilia of the operculum are meant by “getand ;”” but we cannot de- 
pend much on the text of Rumphius, it having been written originally 
in Latin, and translated after the death of the author into the Dutch 
language. 
1, TeENAGODUS ANGUINUS, (Serpula) Linn. 1758. 
a. Testa semiadulta, typica. 
Solen anguinus, Rumph. t. 41. 7. H. 
Serpula anguina, Linn. 8. N. ed. 10. p. 700, excl. var. 6. 
Serpula anguina, var. 3, L. Mus. Lud. Ulr. 701. no. 431; Linn, 
Syst. Nat. ed. 12.-p-147>n0- 804; A» /247 ~2 fry 
Tubulus testaceus solitarius, anguinus, p.p., Mart. Conch. Cab. 
f. 14 (copy). 
La Chenille, Favanne, p. 653, t. 6. f. M (copy). 
Serpula volvoz, Dillw.p.1079. no. 26 (founded on Favanne) ; Wood, 
Index, Serpula, f. 25 (copy). 
B. Testa adulta. S. muricata, Born. 
T. alhescens pallidissime aurantio tincta ; liris 10 parum promi- 
nentibus, squamis sparsis ornatis ; interstitia lirarum levigata, 
rugis transversis distantibus, unde obsolete foveolata, interstitio 
magno subventrali lirula abrupta; apertura elongato-trigona. 
Long. 54 cm., alt. aperturze 10 mm. (Mérch)*. 
Serpula muricata, Born, Testacea, p. 446. t. 18. f. 16. 
Serpula anguina, (3, Born, Index. 
Serpula anguina, Shaw, Miscell. xiv. 575 (from Born). 
Hab. Moluccas (coll. Cuming). Specimen unicum. 
* The length is measured with a string; as the first whorl is always wanting, 
it is not very exact. 
