fig1 is a planar side view of the shellfish opener 10 of the present invention . shellfish opener 10 is formed with two handle members , an upper handle member 12 , and a lower handle member 14 , handle members 12 and 14 are in articulating relationship about pivot point and pivot pin 16 . handle members 12 and 14 are designed to be gripped in the hand of the user at ends 20 and 22 . the forward end 24 of upper handle member 12 forms an anvil 26 for securing and stabilizing a clam during the opening process and for storage of a blade member 28 . blade member 28 is l - shaped in configuration having a blade portion 30 and a depending ratchet member 32 , blade member 28 is swivelly mounted to the upper handle member 12 at pivot point or pivot pin 34 . the ratchet surface 36 of ratchet member 32 faces rearwardly from the anvil portion 26 of upper handle 12 and is cooperative with a ratchet lock 38 mounted on lower arm 14 at pivot pin 40 . additionally , there is an articulating two - piece ratchet arm 42 having a first ratchet arm member 44 pivotally secured to the lower handle 12 at pivot pin 46 and a second ratchet arm member 48 ( see fig2 ) mounted to the opposing terminal end of first ratchet arm member 44 and pivotally mounted to blade member 28 at pivot point 50 . these articulating members associated with the movement of the blade member 28 , are set forth in more detail in fig6 which shows these members without the handle members 12 and 14 being present . it should be pointed out that the ratchet lock 38 is mounted to lower handle 14 at pivot point 40 and is biasly mounted about pivot point 40 with a spring member 52 as illustrated in fig6 and not shown in fig1 . additionally , a pivot locking latch 54 may be positioned at the ends of handle members 12 and 14 to secure blade member 28 in a secure closed position . fig2 is a planar side view of shellfish opener 10 in the open position . the open position is achieved by rotating lower handle member 12 downwardly about pivot point 16 , as illustrated by arrow a in fig2 . this causes the ratchet arms 44 and 48 to articulate and rotate the blade member 28 and ratchet member from the closed position as illustrated in fig1 , to the open position as illustrated in fig2 . this position is maintained by the ratchet lock 28 engaging the ratchet surface 36 of the blade member 28 . lower member 12 is then rotated in the reverse position back to a substantially parallel position with upper handle 14 . in this configuration , the shellfish opener 10 is primed or cocked to receive a shellfish . fig3 illustrates the shellfish opener 10 in the open position of fig2 with a clam 60 having been positioned between the jaws defined by blade member 28 and anvil surface 26 . anvil surface 26 is slotted on its upper surface . the clam is positioned between the jaws with its front end 62 down and its back end 64 in an upward facing position with the notch 66 being proximate to the blade member 28 , the blade member 28 and anvil 26 cooperate to position and stabilize the seam 68 about the periphery of the clam in alignment with the blade . fig4 illustrates the ratcheting movement of the blade 30 against the shellfish , or clam , 60 . the squeezing of upper and lower handle members 12 and 14 activates the ratchet lock 40 and the articulation of ratchet arms 44 and 48 , causing blade 30 to move from the full opened position as illustrated in fig3 , to a closed position through a series of movements activated by the squeezing of the handle members 12 and 14 . this action severs the seam 68 of the clam at its back end 14 proximate the notch 66 , and proceeds downwardly separating the two halves of the shell until the seam 68 has been completely severed . the user now has two clam halves , one containing the meat of the clam , which can easily and quickly be loosened and removed utilizing a shucking blade 70 , rotatably positioned within lower handle 12 and pivotally moved so that the user can utilize it to cut the meat from the clam . the shucking blade 70 when not in use would be pivotally stored within the lower handle 12 . fig5 represents a second embodiment of the shellfish opener 10 . the entire apparatus is identical to that as previously described with the exception that the blade member 28 configuration has been modified . in fig5 , the blade configuration comprises a truncated wedge member 80 , having a lower cutting surface 82 , and upwardly divergent edges 84 and 86 . the clam is positioned in the same manner as previously stated , however , the cutting edge 82 engages the notch 66 of the clam initially severing the seam and muscle , as the blade member 28 is ratcheted through the articulation of handle member 12 and handle member 14 , the divergent edges 84 and 86 form a surface which as it moves downwardly , separates by prying apart the two shells forming the halves of the clam . this embodiment prevents the linear edge of the blade as illustrated in fig1 from inadvertently possibly cutting the meat of the clam during the opening process . this second embodiment assures that there is a very small cutting surface 82 which initially penetrates the seam of the clam at the notch , and then the divergent wedge - like surfaces 84 and 86 serve to pry the two halves of the clam apart . a better understanding of the profile of the blade portion of the blade member 28 of the present invention can be ascertained by reference to fig7 and 8 which are end views of a clam being stabilized between the blade portion and the anvil portion 30 and 26 respectively , of the embodiment illustrated in fig1 through 4 ( fig7 ) and the blade portion 80 and the anvil 26 in the embodiment illustrated in fig5 ( fig8 ). in fig7 , the edge 90 of the blade portion 30 is well defined and engages the clam 60 at its back end 64 at notch 66 . the blade profile upwardly diverges 92 from the edge 90 in an effort to pressure or pry apart the two halves of the clam 60 along the seam . fig8 illustrates the profile of the blade of fig5 which again , is formed with an edge 90 a , but has a greater divergent profile 90 b . the blade portion 80 is designed to again engage the clam 60 along the seam 68 of the clam 60 from its back end 64 , proximate the notch 66 . the front end of the clam 60 in both views rests and is stabilized in the anvil portion 26 . the divergency of the blade portion 80 allows the user to pry open the halves of the clam 60 without more quickly shattering the shell . for the casual user , the ratcheting action of handles 12 and 14 will cause the blade portion 30 or 80 to engage the notch 66 to simultaneously cut along the seam and pry apart the two halves of the clam 60 in order to gain access to the meat of the clam . the casual user would not be concerned with prying apart the two halves of the clam in a completely symmetrical manner with no broken shells . however , those users preparing clams or other shellfish for a raw bar featuring clams and other shellfish are concerned with the aesthetic appearance of the shell and the meat of the shellfish . in those instances , the user may choose to engage the blade portion , either 30 or 80 of the two embodiments with the notch 68 of the clam 60 in order to initially sever the notch and partially sever and pry open the seam of the clam . such a user would then remove the clam from the device and continue prying the shells apart by hand , or utilize the shucking knife 70 positioned in handle 14 to sever the remaining seam of the clam . in this manner , the ratcheting pressure of the device would allow the user to initially sever and commence the prying apart of the two halves , the completion being accomplished by hand or with a shucking knife so as to insure the integrity of the shells for presentation in a raw bar or on a platter . while the present invention has been described with respect to the exemplary embodiments thereof , it will be recognized by those of ordinary skill in the art that many modifications or changes can be achieved without departing from the spirit and scope of the invention . therefore it is manifestly intended that the invention be limited only by the scope of the claims and the equivalence thereof .