KOXGL. SV. VET. AKADEMIENS IIAXI)LIN(!A1{. HANI) 26. N:() 2. 117 



13. G. macrum W. Sm. (1S,5;-}). — V. narrow, lanceolate, abruptly attenuated into very 

 long and narrow beaks, curved in contrary directions. L. 0,2 to 0,27; B. 0,01 nun. Median line 

 central. Transv. strift 27 to 28 in 0,oi torn., longitudinal more than 30 in 0,iii nim. — • Plcur. 

 macr. W. Sm. B. D. I p. (i7 PI. XXXI f. 276. V. H. Syn. p. 119 PI. XXI f. J). Vm. VIll f. 41. 



Marine: Sea of Kara ((xrun.), North Sea! Mediterranean Sea (Grun.). 



14. 0. prolongatiini W. Sm. (1852). — V. narrow, lanceolate, gradually attenuated into 

 long beaks, curved in contrary directions. L. 0,ii to 0,2.'); B. 0,oo.5 to O,oir) mm. Transverse 

 strije 21 to 22 in 0,oi mm., longit. finer. — Pleur. prol. W. Sm. Ann. Mag. Nat. Hist. [2] IX 

 p. PL II f. 7. B. D. I p. (57 PL XXII f. 212. Per. VIII f. 39. 



Marine: North Sea! Balearic Islands! 



Var. dosteroidcs Grun. (1884). — Beaks turned in the same directions. Transv. strisi; 22 in 

 0,0 1 mm. — Flenr. prol. var. closferoides Grun. Franz Josephs Land D. p. 105 (53) PL I f. 58. 

 Per. VIII f. 40. 



Marine: Coasts of England (Grun.). 



15. G. temiissimuin W. Sm. (1853). — V. very narrow, linear-lanceolate, slightly sigmoid, 

 acute. L. 0,ii to 0,22; B. 0,oo5 to 0,oi5 mm. Median line central. Transv. strite 18 to 22 in 0,oi 

 mm. longitud. finer. — Fkur. icnuiss. W. Sm. B. D. I p. 67 PL ^X.11 f. 213. Per. VIII f. 13. 



Marine: Sea of Kara! East coasts of England (W. Sm.), Triest! California! 



Var. suhtilissima Grun. (1880). — L. 0,137; B. 0,oo65 mm. Transv. strire 27 in 0,oi mm. — 

 Pleur. ten. var. suit. Grun. A. D. p. 58. 



Marine: Sea of Kara (Grun.). 



Var. liyperhorea Grun. (1880). — V. linear, sigmoid. L. 0,o84 to 0,094; B. 0,oo6 to 0,oo7 

 mm. T.S. : L.S. -'/.,3, --'04 in 0,oi mm. — Pleur. ten. var. hyperh. Grun. A. D. p. 5S PL IV f. 77. 

 Per. VIII f. 14. 



Marine: Sea of Kara (Grun.). 



Gyros, feimissimum connects G. prolonyatum with G. Spciicerii by the Var. hyperhorta. 



16. G. Spencerii W. Sm. (1852). — V. linear-lanceolate, sigmoid, obtuse. L. O.o78 to 0,22; 

 B. 0,012 to 0,025 mm. Median line central. Transv. stri:e more distant than the longitudinal. 

 T.S. : L.S. 'V22' ■'/24> ^-'24 in 0."i """■ — -P/'''"'- Spcnccrii W. Sm. Ann. Mag. Nat. Hist. [2] IX 

 p. 12 PL II 'f. 15" B. "d. I p. 6S PL XXI I f. 218. P. Spenc. var. Smithii Grun. A. D. p. 59. 

 V. H. Syn. p. 11« PL XXI f. 15. Per. VIII f. 21, 23. P. Spenc. var. Arnottii Grun. A. D. p. 59, 

 P. Spenc. var. borealis Grun. A. D. p. 60. Per. VIII f. 15. P. Spenc. var. AnfiUorum Grun. A. D. 

 p. 60. P. Spenc. var. curvula Grun. A. D. p. 60. V. H. Syn. p. 118 PL XXI f. 3, 4, 5. Per. 

 VIII f. 20, 24. 



Brackish water: Spitsbergen! Sea of Kara! North Sea! Saxony! Canada! New York! West 

 Indies! Bombay (Grove Coll.)! 



Var. exilis Grun. (1880). — L. 0,o5 to 0,o.t5; B. 0,007 mm. Transv. strife 28 to 29 in 0,ui 

 mm. — P. Spenc. var. exilis Grun. A. D. p. 60. Per. VIII f. 25. 



Brackish water: Normandy (Grun.), Tasmania! 



Var. minutiila Grun. (1880). — L. 0,06; B. n,(ii mm. T.S. : L.S. -■' .^.^, -V.^fi in 0,oi mm. — 

 P. Sjienc. var. niin. Grun. A. D. p. (iO. 



Brackish water: Elbe (Grun.). 



Var. nodifera Grun. (1880). — V. linear, slightly sigmoid, obtuse. L. 0,o6 to 0,i; B. (»,oii 

 mm. Median line central. Central nodule surrounded by an elongated, obli(iue area. Transv. 

 striae slightly radiate in the middle. T.S. : L.S. '',22' '"/•'s i" '^'^J" i^^™- ~ ^- "^f^«/"- Grun. A. D. 

 p. 59. P. Spenc. var. nod. V. H. Syn. p. 118. PL XXI f" 13. Per. VIII f. 26. 



Fresh water: Mouth of Elbe (Grun.), Belgium (V. H.), Samoa (Grun.). 



