TURBELLARIA OF PLYMOUTH SOUND. Al 
Genus 9.—MeEsostoma. 
16. MesosroMA NEAPOLITANUM v. Graff (?). 
A single specimen obtained among Fuct bordering the inner side 
of the Breakwater. This species hitherto recorded only from the 
Mediterranean. 
Family PROBOSCIDA. 
Genus 10.—AcRORHYNCHUS. 
17, AcrRoRHYNCHUS cALEDONICUS (Claparéde). 
Found in abundance among Fucus, Halydris, &c., in tide-pools near 
Picklecombe Fort and Redding Point; less commonly in Wembury Bay. 
Genus 11.—MacrorRHYNCHUS. 
18. MacrorHYNCHUS NAEGELII (KOlliker), 
On the inner side of the Breakwater at low spring-tides this 
species was found plentifully during August. 
19, Macroruyncuus croceus (Fabricius). 
Dredged on one occasion on the “ New Grounds,” 
20. MacrorHyNcHUS HELGOLANDICUS (Metschnikoff). 
In the same locality as the foregoing. Probably a search in- 
stituted earlier in the year would reveal more localities for these two 
species. Only a few adults were found, usually each with a single 
ege-capsule. 
Genus 12.—HyYyporRHYNCHUS. 
21. HyporHyNcHUS ARMATUS (Jensen). 
Abundant among Zostera in Cawsand Bay and in tide-pools at 
Redding Point. 
22, HyporRHYNCHUS PENICILLATUS (Schmidt). 
A single specimen among Zostera, Cawsand Bay. 
