85 



451. plombarius, Villa. 



452. Poeyanus, Lea. 



453. politus, Mouss. 



454. ponderosus, Lea. 



455. porrectus, Sow. 



456. Powellii, Lea. 



457. prasinus, Con. 



458. preciosus, Fer. 



459. pressus, Lea. 



460. Prevostianus, id. 



461. primigenius, Cow. 



462. profugus, Lea. 



463. productior, z<Z 



464. productus, Con. 



465. productus, Mouss. 



466. pruinosus, Schmdt. 



467. pruneosus, Ze^. 



468. proximus, Zea. 



469. psammoicus, D'Orb. 



470. psoricus, More. 



471. pulcher, Zea. 



472. pullus, Con. 



473. pulcliellus, ZV/\ 



474. pulvinulus, Lea. 



475. pumilis, id. 



476. puniceus, Hald. 



477. purpuratus, Za?ra. 



478. purpuriatus, $ay. 



479. pusillus, Lea. 



480. pustidatus, id. 



481. pustulosus, w£. 



482. pygmseus, id. 



483. pyrainidatus, «^. 



484. quadrulus, Say. 



485. radiatus, Lam. 



486. radiatus, Zea. 



487. Rajahensis, id. 



488. Rangianus, z<£. 



489. raristellus, More. 



490. Pavenelianus, Lea. 



491. rectus, Zam. 



492. Reeveianus, Lea. 



493. regularis, ^. 



494. Petzii, Kiist. 



495. retusus, Lam. 



496. rhombeus, /fiar^. 



497. rhomboideus, Ward. 



498. robustus, Sow. 



499. Poanokensis, Lea. 



500. Poisii, Mich. 



501. rotundatus, Zaw. 



502. Pousii, Dttp. 



503. rubellus, Cow. 



504. rubiginosus, Lea. 



505. rufuscidus, id. 



506. rugosus, z'<Z 



507. Pumphianus, id. 



508. rusticus, eW. 



509. Sagittarius, id. 



510. sagittiformis, id. 



511. Sapotalensis, «V?. 



512. satur, id. 



513. saxeus, Co?z. 



514. saxulum, Mort. 



515. Scamnatus, More. 



516. Schoolcraftensis, Zea. 



517. scobinatus, id. 



518. scutulatus, More. 



519. securis, Ze#. 



520. semiplicatus, Trosch. 



521. Shepardianus, Ze«. 



522. Shurtleffianus, id. 



523. Shuttleworthii, u?. 



524. simus,'ifi?. 



525. simplex, id. 



526. Sloatianus, id. 



527. Smithii, Gray. 



528. Solandri, flow. 



529. solidus, Lea. 



530. sordidus, zc?. 



531. Sowerbianus, id. 



532. sparsus, id. 



533. spatulatus, z'c?. 



534. spheniopsis, More. 



535. spinosus, Ze«. 



536. Spinelli, Villa. 



537. splendidus, Lea. 



538. Staffenensis, Forbes. 



539. stapes, Zea. 



540. stagnaHs, Cora. 



541. stegarius, id. 



542. Stevenianus, Kryn. 



543. Stewardsonii, Zea. 



544. Stonensis, id. 



545. stramineus, Cow. 



546. striatus, Lea. 



547. strigosus, id. 



548. suavidicus, z77. 



549. subangulatus, id. 



550. subconstrictus, /Sow. 



551. subovatus, Lea. 



552. subplanus, Con. 



553. subsinuatus, Z^oc/i. 



554. subrotundus, Lea. 



555. substriatus, «a?. 



556. subtentus, Say. 



557. subtruncatus, Fit. 



558. succissus, Zm. 



559. sulcatus, id. 



560. superbus, ?^. 



561. symmetricus, id. 



562. Taitianus, id. 



563. Tampicoensis, e'«?. 



564. Tappaniauus, id. 



565. Teconiatensis, z<Z 



566. tellinarius, Gold/. 



567. tener, Lea. 



568. tenerus, Z«i\ 



569. Tennesseensis, Lea. 



570. tenuis, Cray. 



571. testudineus, More. 



572. teretiusculus, Phil. 



573. terrenus, ilZo;-^. 



574. tetralasmus, Say. 



575. Tigris, ZVr. 



576. tortivus, Lea. 



577. trapezoides, e'c?. 



578. triangularis, Bar. 



579. trigonus, Lea. 



580. trigonus, Zom*. 



581. Tripolitanus, Fer. 



582. Troostensis, Zea. 

 5 S3. Troschelianus, id. 



584. trossulus, id. 



585. truncatus, Schum. 



586. truncatus, Speny. 



587. truncatus, Swain. 



588. truncatoaus, Potiez. 



