e 
Dr. Johnston’s Index to the British Annelides. 435 
7. B.? flaccida. 
Planaria flaccida, Johnston in Zool. Journ. iii. 488. 
Obs. Not Planaria flaccida of Muller. 
8. B.? unicolor. 
Planaria unicolor, Johnston in Zool. Journ. iii. 488. 
Lineus. 
Lineus, Sowerby, “ Brit. Misc. tab. 8.” Flem. Phil. Zool. ii. 605,.— 
Borlasia, Oken in Schweigg. Handb. 591.—Nemertes, Cuv. Reg. 
Anim. ill. 259.—Notospermus ? Huschke in Edin. Journ. Nat. and 
Geogr. Se. iii. 305. 
1. L. longissimus. 
Lineus longissimus, ‘‘ Sowerby, Brit. Misc. tab. 8.’ Jameson in 
Wern. Mem.i. 557. ‘Turt. Brit. Faun. 130. 
Gordius marinus, Penn. Brit. Zool. iv. 74. Montagu in Linn. Trans, 
vii. 72. Davies in Linn. Trans. xi. 292. 
Borlasia Anglie, Schweigg. Handb. 591. 
Nemertes Borlasii, Cuv. Reg. Anim. i. 259. W. Thompson in 
Charlesw. Mag. ii. 21. Griffith’s Cuv. xii. 468. 
Boriasia longissimus, Templeton in Loud. Mag. N. Hist. ix. 236, 
2. L. gracilis. 
Nemertes, H. D. S. Goodsir in Ann. N. Hist. xv. 378. pl. 20. fig. 3. 
Serpentaria. 
Serpentaria, H. D. S. Goodsir in Ann. N. Hist. xv. 377. 
1. S. fragilis. 
Serpentaria, Goodsir in Ann. N. Hist. xv. 377. pl. 20. fig. 1, 2. 
Meckelia. 
Meckelia, Leuckart = Carinella, Johnston. 
1. M. trilineata. 
Gordius annulatus, Montagu in Linn. Trans. vii. 74. Turt. Brit. 
Faun. 130. Penn. Brit. Zool. iv. 73. 
Carinella trilineata, Johnston in Loud. Mag. N. Hist. vi. 232. fig. 24. 
W. Thompson in Ann. and Mag. N. Hist. vii. 482. 
Obs. As this is distinct from the Meckelia annulata of Grube 
(Actin. &c. p. 58. pl. 1. fig.7.), I have changed the specific name of 
Montagu. 
Prostoma. 
Prostoma, Dugés: v. Mag. Zool. and Bot. ii. 471.—Nemertes, John- 
ston in Mag. Zool. and Bot. 1. 534. 
1. P. gracilis. 
Nemertes gracilis, Johnston in Mag. Zool. and Bot. i. 534. pl. 17. 
fig. 1. .W. Thompson in Ann. and Mag. N. Hist. vii. 482. 
2. P. lactiflorea. 
Planaria lactiflorea, Johnston in Zool. Journ. ui. 489. 
Nemertes lactiflorea, Johnston in Mag. Zool. and Bot. i. 535. pl. 17. 
fig. 2. W. Thompson in Ann, and Mag. N. Hist. vii. 482. 
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