| Buy | ID | Shell | Location | Description | Size | Price |
| 386085
| Penion chathamensis (A. W. B. Powell, 1938) | N.Zealand | F++, RARE DEEP WATER SPECIES! IMPRESSIVE SHELL - LOOKS A DIFFERENT SPECIES! LABELED AS P.FAIRFIELDAE (SYNONYM)! FROM DOUG SNOOK COLLECTION! w/o | 100mm | $65.00 |
| 384383
| Penion cuvierianus (A. W. B. Powell, 1927) | N.Zealand | F+, LARGE SHELL! SPECIAL PRICE! FROM DOUG SNOOK COLLECTION! | 184mm | $45.00 |
| 384384
| Penion cuvierianus (A. W. B. Powell, 1927) | N.Zealand | F+, WOW! IMPRESSIVE HUGE INFLATED SHELL! YOU MUST SEE THAT! FROM DOUG SNOOK COLLECTION! | 198.4mm | $150.00 |
| 380196
| Penion cuvierianus (A. W. B. Powell, 1927) | N.Zealand | F+, HUGE SPECIMEN! TRAWLED AT DEEP WATER IN 1968! VERY UNUSUAL FORM - THE ORIGINAL LABEL SHOWS AS P.DILATATUS (SYNONYM OF P.SULCATUS)! FROM DOUG SNOOK COLLECTION! w/o | 176.6mm | $125.00 |
| 380408
| Penion cuvierianus (A. W. B. Powell, 1927) | N.Zealand | F+, SPECIAL LIGHT COLORED SPECIMEN! TRAWLED AT DEEP WATER IN 1967! VERY UNUSUAL FORM - THE ORIGINAL LABEL SHOWS AS P.DILATATUS (SYNONYM OF P.SULCATUS)! FROM DOUG SNOOK COLLECTION! w/o | 154.3mm | $100.00 |
| 379449
| Penion cuvierianus (A. W. B. Powell, 1927) | N.Zealand | F, GIANT! THE LARGEST ON OUR DATABASE - THIS IS THE CLOSEST TO THE CURRENT RECORD 239MM. DEAD TAKEN WITH A HOLE, BUT THE SHELL IS IMPRESSIVE! EX.COLL. DOUGLAS SNOOK | 227mm | $60.00 |
| 382971
| Penion cuvierianus (A. W. B. Powell, 1927) | N.Zealand | F+, HISTORICAL KNOBBY SPECIMEN FROM DOUG SNOOK COLLECTION! FOUND IN 1947! | 149.5mm | $60.00 |
| 370110
| Penion maximus (Tryon, 1881) | Australia | F+, VERY LARGE WITH SPECIAL YELLOW-CREAM COLOR WITH BROWN BAND! FABULOUS! (CON) | 213mm | $65.00 |
| 384508
| Penion sulcatus (Lamarck, 1816) | N.Zealand | F++, GREAT RIBBED SPECIMEN FROM DOUG SNOOK COLLECTION! LOOKS LIKE A FASCIOLARIIDAE! | 64.5mm | $25.00 |
| 383492
| Penion sulcatus (Lamarck, 1816) | N.Zealand | F+, FANTASTIC LARGE SPECIMEN FROM DOUG SNOOK COLLECTION! W/O | 118.4mm | $75.00 |
| 380785
| Penion sulcatus (Lamarck, 1816) | N.Zealand | F+, RARE ALBINISTIC FORM! EXCEPTIONAL ATTRACTIVE SHELL FROM DOUG SNOOK COLLECTION! LOOKS LIKE HYBRID BETWEEN CUVIERI & SULCATUS! MAYBE P.DILATATUS COULD APPLY FOR THAT! | 115.3mm | $90.00 |