A.W.B. POWELL 27 
secundum, Coenaculum Powell, 1937, DR 15:198, pl.52, fig.13. N.Z., Recent. 
secundus, Venustatrochus Powell, 1958, BANZARE 6(9):181, pl.2, fig.3. Antarctica, Recent. 
segregata, Cabestana waterhousei Powell, 1933, TNZI 63:156, pl.23, fig.3. N.Z., Recent. 
SEMELOIDEA Bartrum & Powell, 1928, TNZI 59:158. Type species (OD) S.donaciformis 
Bartrum & Powell, 1928. N.Z., Tertiary. 
semilirata, Cosmasyrinx Powell, 1942, BAIM No.2:70, pl.14, fig.9. N.Z., Tertiary. 
semiplana, Coronasyrinx Powell, 1944, RAIM 3(1):22, pl.1, fig.2. Sth. Australia, Tertiary. 
semiplicata, Estea Powell, 1927, TNZI 57:543, pl.28, fig.17. N.Z., Recent. 
semipolita, Cochlespira pulchella Powell, 1969, IPM 2(10):398, p1.309. Philippines, Recent. 
senecta, Talabrica Powell, 1931, RAIM 1(2):109, pl.12, figs.23,24. N.Z., Tertiary. 
senta, Marshallaria Powell, 1942, BAIM No.2:81, pl.14, fig.3. N.Z., Tertiary. 
sepelibilis, “Guraleus” Powell & Bartrum, 1929, TNZI 60:441, pl.41, figs.55-58. N.Z., Tertiary. 
sericea, Laomarex Powell, 1948, RAIM 3(4/5):279, pl.54, fig.1. N.Z., Recent. 
sericea, Zemitrella Powell, 1937, DR 15:212, pl.56, fig.3. N.Z., Recent. 
serratocostata, Cosa Powell, 1933, PMSL 20(4):201, pl.18, figs.1,2. N.Z., Recent. 
serrulata, Mauidrillia Powell, 1944, RAIM 3(1):36, pl.4, fig.8. Victoria, Australia, Tertiary. 
SIBOGASYRINX Powell, 1969, IPM 2(10):343. Type species (OD) Leucosyrinx pyramidalis 
Schepman, 1913. Indonesia, Recent. 
sibukoensis, Apiotoma tibiaformis Powell, 1969, IPM 2(10):347, pl.265, figs.7.8, Indonesia, 
Recent. 
sibukoensis, Gemmula Powell, 1964, IPM 1(5):258, pl. 196, figs.8,9. Indonesia, Recent. 
signeyana, Chlanidota Powell, 1951, DR 26:141, pl.8, figs.34,35. Sth. Orkneys, Recent. 
simillima, Cochlespira Powell, 1969, IPM 2(10):403, pl.314, fig.3. Philippines, Recent. 
simplex, Cirsonella Powell, 1937, DR 15:185, pl.50, fig.12. N.Z., Recent. 
simplex, Lironoba Powell, 1927, RCM 3(2):116, pl.21, fig.4. N.Z., Recent. 
simplex, Tahudrillia Powell, 1942, BAIM No.2:99, pl.4, fig..4. N.Z., Tertiary. 
simplex, Tromina Powell, 1951, DR 26:136, pl.6, fig. 15. Falkland Is, Recent. 
singletoni, Guraleus Powell, 1944, RAIM 3(1):48, pl.6, fig.14. Victoria, Australia, Tertiary, 
sinuata, Liratilia, Powell, 1937, DR 15:214, pl.56, fig.2. N.Z., Recent. 
SINUBER Powell, 1951, DR 26:120. Type species (OD) Natica sculpta von Martens, 1878. 
Kerguelen Is, Recent. 
sinusigera, Puha Powell, 1942, BAIM No.2:164, pl.4, fig.8. N.Z., Tertiary. 
smithae, Panopea Powell, 1950, RAIM 4(1):78, pl.7, fig.5. N.Z., Recent. 
smithi, Chlanidota Powell, 1958, BANZARE 6(9):192, pl.3, fig.3. Antarctica, Recent. 
smithi, Pachymelon (Palomelon) Powell, 1950, RAIM 4(1):81, pl.7, figs.1,2. N.Z., Recent. 
sola, Austrodrillia (Regidrillia) Powell, 1942, BAIM No.2:99, pl.10, fig.4. N.Z., Recent. 
sola, Heteroturris Powell, 1967, IPM 1(7):411, pl.298. Philippines, Recent. 
sola, Maoritomella Powell, 1942, BAIM No.2:114, pl.4, fig.11, N.Z., Tertiary. 
SOLARIELLINAE Powell, 1951, DR 26:102. Type genus SOLARIELLA S.V. Wood, 1842. 
solitaria, Eurytellina Powell, 1931, RAIM 1(2):95, pl.14, fig.40. N.Z., Tertiary. 
solitaria, Murdochia Powell, 1935, PMSL 21(4):244, pl.26, figs.1,2. N.Z., Recent. 
sorenseni, Flammulina Powell, 1955, CEB No.15:122, pl.4, figs. 38,39. N.Z., Recent. 
sorenseni, Notosetia Powell, 1955, CEB No.15:87, pl.3, fig.20. N.Z., Recent. 
sorenseni, Paxula Powell, 1955, CEB No.15:109, pl.1, fig.6.N.Z., Recent. 
sorenseni, Pseudaneitea Powell, 1955, CEB No.15:128, pl.4, fig.40. N.Z., Recent. 
sorenseni, Subonoba Powell, 1955, CEB No,15:76, pl.2, fig.11. N.Z., Recent. 
sorenseni, Trachycardium (Vasticardium) Powell, 1958, RAIM 5(1/2):76, pl.l1, figs.6,7. 
Kermadec Is, Recent. 
spectabilis, Coluzea Powell, 1931, RAIM 1(2):105, pl.10, figs.1,2. N.Z.. Tertiary. 
spectabilis, Egustula Powell, 1928, TNZI 59:366, pl.54, figs.3,4. N.Z., Recent. 
spedeni, Paryphanta Powell, 1932, RAIM 1(3):159, pl.28, figs.3-5. N.Z., Recent. 
SPEIGHTIIDAE Powell, 1942, BAIM No.2:166. Type genus SPEIGHTIA Finlay, 1926. 
spelaea, Cavellia Powell, 1928, TNZI 59:366, pl.55, fig.6, N.Z., Subrecent. 
spelaea, Rhytida Powell, 1933, PMSL 20(4):192, textfigs.1-3. N.Z., Subrecent. 
