Land, Fresh- Water, and Marine Crustacea. 377 



7. Balanus Hameri (Ascanius). 



1767. Lepas Hameri, Ascan., Icones rerum Naturalium, Tab. 10. 

 1854. Balanus Hameri, Darwin, I. c. , p. 277, pi. vii. figs. 5a-5c. 



Hah. — Largo Bay, and off the west side of Inchkeith, 

 single specimens, and occasionally a cluster attached to 

 pieces of wood. 1 



Genus (4) Verruca, Schumacher, 1817. 



8. Verruca Stromia (O. F. Mliller). 



1776. Lepas Stromia, Miill., Zool. Dan. Prodr., No. 3025. 



1854. Verruca Stromia, Darwin, I. c, p. 518, pi. xxi. figs. la-1/. 



Hah — Frequent on stones, dead shells, etc., brought up 

 in the dredge. 



Ehizocephala. 



Family Sacculin^e. 



Genus (5) Sacculina, Thompson. 



9. Sacculina carcini, Thompson. 



Hal. — Attached to the abdomen of Shore Crabs, Carcinus 

 mamas, at Joppa (J. Anderson 2 ) ; not very rare. 



10. Sacculina triangularis, J. Anderson. 2 



Hob. — Firth of Forth (J. Anderson). Dunbar, attached 

 lo the abdomen of Cancer pagur us; rare (H. C. Williamson). 



11. Sacculina sp. 



Hob. — Attached to the abdomen of Portunus holsatus; this 

 Sacculine has been observed very sparingly in different parts 

 of the estuary. 



1 Balanus tintinnabulum (Linn.), from Leith Dock, in Leslie and Herd- 

 man's Invertebrate Fauna, is, as stated by these authors, "a foreign importa- 

 tion," and is not included with the others here. 



2 Cf. Proc. Boy. Phys. Soc, vol. ii. 



