640 REPORT—1863. 
$$ -_____— 
Nutt. | Jew. |B. A. |Smiths. Ins. Ken. | Lord. Swan.) Cooper. 
e| 
59. Semele decisa 4........- D 
60. MII bs heb eek eee — 
61. 
62. —— pulchra.....,..60.. 
63. INCONSTUS 22.,.%24)4 « — 
64. Cumingia Californica .. B 
65. Donax Californicus ...... B 
66. flextiosus! Alii. cece — 
67. NAVICULE | Shas kl. —- 
68. Heterodonax bimaculatus | D 
69. Standella Californica .,..| B 
B 
B 
Bry| Ho 
Se 
[Bld eid4 
696;:—- nasuta-.. ss... .e08. 
70, —— planulata .......... 
fille LACHLB. fs she dies selec 
72. Raéta undulata.......... 
73. Clementia subdiaphana 
74, Amiantis callosa ........ 
75. Pachydesma crassatelloides} BD 
76, Psephis tantilla.......... = 
|] el |leoel lists 
| 
a 
fea Sede ES eh a Sh 
ck Ac = (dr FU GPs it 
| 
Kee] so] eeeyylS 
Joales|ol || 
| 
ttdtd | | 
— Vfr. 
viv 
synonymic name may be revived in restricted sense. Species=diangulata, 
P. Z. 8. 1855, p. 230. 
59, Semele decisa, Cony. auct. Large, rough, like Peruvian corrugata, but truncated. 
60. Semele rupium, Shy. Smaller, rough, swollen; with smaller mantle-bend. 
Galapagos. Not x. Cp. 
61. Semele rubrolineata, (? Conr.). Flattened, same shape, with faint sculpture each 
way, and pink rays. [Conrad’s lost shell may be young decvsa. 
62, Semele pulchra, Shy. Transverse, crowded concentric sculpture, with radiating 
lines at sides. Southern fauna. 
63, Semele incongrua, n.s. Like pulchra, with concentric sculpture differing in 1. 
and 1. valves: fine radiating stric all over. 40-60 fm, c. Cp. 
64. Cumingia Californica, Cony. auct. Maz. Cat. no. 44. 
65. Donax Californicus, Conr. (non Desh.) = obesus, Gld. (non Desh.). Smooth, 
stumpy: outline and colour variable. 
66. Donax flecuosus, Gld, Like punctostriata jun, with stronger keel, and no 
punctures. 
67. Donax navicula, Shy. Maz. Cat. no, 77. From Southern fauna. 
G8. Heterodonax bimaculatus, Broad var., generally violet,=Psammobia Pacifica, 
Conr.= Tellina vicina, C. B, Ad. Cape St. Lucas, Acapulco, W, Indies. 
Family Mactride. 
69. Standella Californica, Conr. (non Desh.). Large, shaped like Schiz. Nuttall, but 
beaks narrow. Mantle-bend separate from ventral line. 
69, Standella ? var. nasuta, Gd. ( ce ame bs Revived for young shells between 
Californica and planulata, till more is known. 
70. Standella planulata,Conr, Nearly as large ; shape piper Mactrella exoleta. 
71. Standella falcata, Gld, Otia. Shape like planalata, but flatter. 
72. Raéta undulata, Gld. Otia. Like the Atlantic 2. canaliculata, but reversed. 
Rare at 8. Pedro, Cp. 
Family Veneride. 
73, 2Clementia subdiaphana, n.s. Hinge normal, very thin, ashy. 
74, Amiantis callosa, Cony. (not auct.). Subgenus of Callista: hinge-plate rough- 
ened as in Mercenaria: mantle-bend as in Dosinia. L. w. com. Cp. 
75. Pachydesma crassatelloides, Cony, auct. Subgenus of Trigona, with fewer teeth : 
jun. = stultorum, Gray. 
76, Psephis tantilla, Gld. Otia. Subgenus of Venus: animal ovoviviparous. Teeth 
elongate, approaching Pachydesma, Small,with purple spot. 12-20fm.¢, Cp. 
if 
